Recoil renumbered its entire kit catalogue twice in the last twenty years. In 2013 the suffix on every kit code shifted from 0 to 8. In 2023 every code picked up an RC prefix. If you've ever searched an old purchase order, a printed catalogue, or a service-manual callout and come up empty, this is why.
This is the single most comprehensive cross-reference for Recoil kit part numbers anywhere in the Australian market. 277 individual kits mapped across all three catalogue generations (2007 → 2013 → 2023), grouped by thread family, with the matching drill bits, STI taps, inserts, install tools and tang break tools spelled out. Cross-reference data compiled by AIMS Industrial from the Recoil 2007 catalogue, the 2013 Australian Price List, and the 2022/2023 catalogue, then validated against the current AIMS Recoil collection.
Quick Reference — How to Use This Guide
Three things you need to know before reading the tables.
The three generations
-
2007 Part No. — the original Recoil code as listed in the 2007 catalogue. Mostly 5-digit numeric codes ending in 0 (e.g.
35060for M6 x 1.0). -
2013 Part No. — same kit, but the trailing 0 was switched to an 8 across the Australian Price List (e.g.
35068). Some specialty kits gained a hyphenated sub-code (e.g.38108-2for the M10 trade spark plug kit). -
2023 Part No. (RC) — the current code. Same number as 2013, with a literal RC prefix added (e.g.
RC35068). A handful of kits were also re-organised into "Inc.Drill" variants where the matching HSS drill bit is now packed in the box.
What "Status" means
- Stable — number is unchanged, or only gained the RC prefix. Order with confidence.
- Renumbered — the number changed beyond a simple prefix addition (usually the 2013 suffix shift from 0 to 8). Cross-reference carefully.
- POA — Price on Application. Kit still exists but moved to special-order in 2023. Contact AIMS for current pricing and lead times.
- Obsolete — kit appeared in the 2007 and/or 2013 catalogue but is not listed in 2023. See the Obsolete Kits section below for suggested current alternatives.
- New 2013 — kit didn't exist before the 2013 catalogue.
- New 2023 — kit was introduced in the 2023 catalogue.
RC prefix logic at a glance
Recoil's 2023 numbering follows a consistent family pattern. The first two digits after the RC prefix tell you the thread system:
| RC Prefix Range | Thread System | Example |
|---|---|---|
| RC30xxx | BSF (British Standard Fine) + BA | RC30068 — 5/16-22 BSF |
| RC31xxx | BSP (British Standard Pipe) | RC31028 — 1/8-28 BSP |
| RC32xxx | BSW (British Standard Whitworth) | RC32088 — 1/2-12 BSW |
| RC33xxx | UNC (Unified National Coarse) | RC33048 — 1/4-20 UNC |
| RC34xxx | UNF (Unified National Fine) | RC34048 — 1/4-28 UNF |
| RC35xxx | Metric Coarse | RC35068 — M6 x 1.0 |
| RC36xxx | NPT / Special Inch | RC36028 — 1/8-27 NPT |
| RC37xxx | Metric Medium | RC37088 — M8 x 1.0 |
| RC38xxx | Metric Extra Fine / Spark Plug | RC38148 — M14 x 1.25 Spark Plug |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
Most jobs only touch one or two of these families. Find your section in the tables below and read across.
Metric Coarse Thread Kits Cross-Reference (M2 to M45)
The bread-and-butter family — covers most automotive, machinery and general engineering applications. Range runs from instrument-scale M2 x 0.4 through to heavy industrial M45 x 4.5. AIMS stocks the M3 to M30 range as in-stock variants of the Recoil Thread Repair Kit — Metric 304 Stainless Steel, with the larger sizes available on order from the Recoil collection.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| M2 x 0.4 | 35020 | 35028 | RC35028 | Renumbered | 2007→2013: suffix 0→8; same size |
| M2.2 x 0.45 | 35010 | 35018 | RC35018 | Renumbered | — |
| M2.5 x 0.45 | 35250 | 35258 | RC35258 | Renumbered | — |
| M3 x 0.5 | 35030 | 35038 | RC35038 | Renumbered | — |
| M3.5 x 0.6 | 35350 | 35358 | RC35358 | Renumbered | 2023: POA only |
| M4 x 0.7 | 35040 | 35048 | RC35048 | Renumbered | — |
| M5 x 0.8 | 35050 | 35058 | RC35058 | Renumbered | — |
| M6 x 1.0 | 35060 | 35068 | RC35068 | Renumbered | — |
| M7 x 1.0 | 35070 | 35078 | RC35078 | Renumbered | — |
| M8 x 1.25 | 35080 | 35088 | RC35088 | Renumbered | — |
| M9 x 1.25 | 35090 | 35098 | RC35098 | Renumbered | — |
| M10 x 1.5 | 35100 | 35108 | RC35108 | Renumbered | — |
| M11 x 1.5 | 35110 | 35118 | RC35118 | Renumbered | — |
| M12 x 1.75 | 35120 | 35128 | RC35128 | Renumbered | — |
| M13 x 1.75 | 35130 | 35138 | RC35138 | Renumbered | — |
| M14 x 2.0 | 35140 | 35148 | RC35148 | Renumbered | — |
| M15 x 2.0 | 35150 | 35158 | RC35158 | Renumbered | — |
| M16 x 2.0 | 35160 | 35168 | RC35168 | Renumbered | — |
| M18 x 2.5 | 35180 | 35188 | RC35188 | Renumbered | — |
| M20 x 2.5 | 35200 | 35208 | RC35208 | Renumbered | — |
| M22 x 2.5 | 35220 | 35220 | RC35220 | Stable | 2007→2013: no change |
| M24 x 3.0 | 35240 | 35240 | RC35240 | Stable | — |
| M27 x 3.0 | 35270 | 35270 | RC35270 | Stable | — |
| M30 x 3.5 | 35300 | 35300 | RC35300 | Stable | — |
| M30 x 3.0 | — | 35300-3 | RC353003 | New 2013 | 3mm pitch variant added 2013; 2023: RC353003 |
| M33 x 3.5 | — | 35330 | RC35330 | New 2013 | — |
| M36 x 4.0 | 35360 | 35360 | RC35360 | Stable | — |
| M39 x 4.0 | 35390 | 35390 | RC35390 | Stable | — |
| M42 x 4.5 | 35420 | 35420 | RC35420 | Stable | — |
| M42 x 4.0 | 35420-4 | 35420-4 | RC354204 | Renumbered | 4mm pitch variant; 2023: RC354204 |
| M45 x 4.5 | — | 35450 | RC35450 | New 2013 | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
The most popular metric kit in this range is RC35068 (M6 x 1.0) — the size most commonly stripped on cast aluminium engine and gearbox housings. The RC35004R range kit covers M5, M6, M8, M10 and M12 in a single case if you want broad cover. Step up to RC35005R for M6 through M16. For more on diagnosing and avoiding stripped threads in the first place, see our stripped threads guide.
Metric Medium Thread Kits Cross-Reference
The "medium" family covers metric threads where the pitch sits between coarse and fine — used heavily in automotive applications and where coarse threads would be too aggressive for the material. M8 x 1.0, M10 x 1.25 and M12 x 1.25 are the common sizes here.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| M8 x 1.0 | 37080 | 37088 | RC37088 | Renumbered | — |
| M9 x 1.0 | 37090 | — | — | Obsolete | In 2007; dropped by 2013 |
| M10 x 1.25 | 37100 | 37103/37108 | RC37103/RC37108 | Renumbered | Split into two SKUs by 2013 |
| M11 x 1.25 | 37110 | 37118 | — | Obsolete | 2007 & 2013; not in 2023 |
| M12 x 1.5 | 37120 | 37128 | RC37128 | Renumbered | — |
| M13 x 1.5 | — | 37138 | RC37138 | New 2013 | — |
| M14 x 1.5 | 37140 | 37148 | RC37148 | Renumbered | — |
| M15 x 1.5 | 37150 | 37158 | RC37158 | Renumbered | — |
| M16 x 1.5 | 37160 | 37168 | RC37168 | Renumbered | — |
| M18 x 2.0 | 37180 | 37188 | RC37188 | Renumbered | — |
| M20 x 2.0 | 37200 | 37208 | RC37208 | Renumbered | — |
| M22 x 2.0 | 37220 | 37220 | RC37220 | Stable | — |
| M24 x 2.0 | 37240 | 37240 | RC37240 | Stable | — |
| M27 x 2.0 | 37270 | 37270 | RC37270 | Stable | — |
| M30 x 2.0 | 37300 | 37300 | RC37300 | Stable | — |
| M33 x 2.0 | — | 37330 | RC37330 | New 2013 | — |
| M36 x 3.0 | 37360 | 37360 | RC37360 | Stable | — |
| M39 x 3.0 | 37390 | 37390 | RC37390 | POA | 2023: POA only |
| M42 x 3.0 | 37420 | 37420 | RC37420 | POA | 2023: POA only |
| M6 x 0.75 Inc.Drill | — | — | RC37060 | New 2023 | New in 2023 only |
| M9 x 1.0 Inc.Drill | — | — | RC37098 | New 2023 | New in 2023 only |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
Metric Extra Fine Thread Kits Cross-Reference
Extra fine pitches are common on hydraulic fittings, sensor bosses, and precision adjustments. The M14 x 1.25 spark plug thread sits in this family — see the dedicated Spark Plug section below.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| M10 x 1.0 | 38101 | 38108 | RC38108 | Renumbered | 2007 suffix 01→08 |
| M11 x 1.0 | 38110 | 38118 | RC38118 | Renumbered | — |
| M12 x 1.25 | 38121 | 38128 | RC38128 | Renumbered | — |
| M12 x 1.0 | — | 38120-1 | RC381201 | New 2013 | 1mm pitch variant; 2023: RC381201 |
| M13 x 1.25 | 38130 | 38138 | RC38138 | Renumbered | — |
| M14 x 1.25 (multi-insert) | 38141 | 38147 | RC38147 | Renumbered | Multi-insert spark plug sizes |
| M14 x 1.25 | 38140 | 38148 | RC381481 | Renumbered | 2023: RC381481 |
| M18 x 1.5 | 38181 | 38188 | RC381881 | Renumbered | 2023: RC381881 |
| M18 x 1.5 Inconel | 38180 | 38188-1X | RC381881X | Renumbered | High-temp Inconel; 2023: RC381881X |
| M20 x 1.5 | 38200 | 38208 | RC38208 | Renumbered | — |
| M22 x 1.5 | 38220 | 38220 | RC38220 | Stable | — |
| M24 x 1.5 | 38240 | 38240 | RC38240 | Stable | — |
| M26 x 1.5 | — | 38260 | RC38260 | New 2013 | — |
| M27 x 1.5 | 38270 | 38270 | RC38270 | Stable | — |
| M30 x 1.5 | 38300 | 38300 | RC38300 | Stable | — |
| M36 x 1.5 | 38360 | 38360 | RC38360 | Stable | — |
| M39 x 2.0 | 38390 | 38390 | RC38390 | POA | 2023: POA only |
| M42 x 2.0 | 38420 | 38420 | RC38420 | POA | 2023: POA only |
| M8 x 0.75 | — | — | RC38080 | New 2023 | POA in 2023 |
| M10 x 6.8mm x 1.0 | — | — | RC38102 | New 2023 | Derailleur / bike spec |
| M11 x 1.0 | — | — | RC38110 | New 2023 | Additional SKU 2023 |
| M25 x 1.5 | — | — | RC38250 | New 2023 | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
Spark Plug & Plug Saver Kits Cross-Reference
Stripped spark plug threads in cylinder heads are one of the most common Recoil applications. The thread is almost always M14 x 1.25 on modern petrol engines, with M10 x 1.0 and M12 x 1.25 appearing on smaller engines, motorcycles and outboards. M18 x 1.5 covers older diesel and some marine engines.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| M10 x 1.0 Trade | 38100 | 38108-2 | RC381082 | Renumbered | — |
| M12 x 1.25 Trade | 38120 | 38120-2 | RC381202 | Renumbered | 2023: RC381202 |
| M14 x 1.25 Standard | 38140 | 38140 | RC38140 | Stable | — |
| M14 x 1.25 Trade | — | 38148-2 | RC381482 | New 2013 | 2023: RC381482 |
| M18 x 1.5 Trade | 38180 | 38188 | RC38188 | Renumbered | — |
| Plugsaver M14 x 1.25 | — | 38148 | RC38148 | New 2013 | — |
| Plugsaver Refill | — | — | RC98147RP | New 2023 | — |
| Plugsaver Ford Triton | — | — | RC98140T | New 2023 | Ford-specific kit |
| Expanding Tool | — | — | RC98146 | New 2023 | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
AIMS keeps the four most common spark plug kits in stock as part of the Recoil collection: RC381082 (M10 x 1.0), RC381202 (M12 x 1.25), RC38140 (M14 x 1.25 standard), the trade version RC381482, and RC38188 (M18 x 1.5). The RC38148 Plug Saver Kit is the field-repair version — designed for in-vehicle use without removing the cylinder head.
Left Hand Thread Kits Cross-Reference
Left-hand threads appear on bike crank arms, fan shafts, gas valves, and any application where a clockwise-rotating component would otherwise back the fastener off. Recoil's left-hand kits include LH-specific drill bits and STI taps.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| M6 x 1.0 LH Inc.Drill | — | 35068LH | RC35068LH | New 2013 | — |
| M8 x 1.25 LH Inc.Drill | — | 35088LH | RC35088LH | New 2013 | — |
| M10 x 1.5 LH Inc.Drill | — | 35108LH | RC35108LH | New 2013 | — |
| M12 x 1.75 LH Inc.Drill | — | 35128LH | RC35128LH | New 2013 | — |
| M10 x 1.25 LH Inc.Drill | — | — | RC37108LH | New 2023 | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
For combination bike repairs (left and right crank threads in one kit), AIMS stocks the RC3409620 Bike Crank Range Kit.
Pilot Nose Tap Kits & Metric Range Kits Cross-Reference
Pilot Nose kits use a longer-shanked STI tap with a guide nose — useful for blind holes and tight-access work where a standard tap would wander. The Range Kits (suffix R) bundle multiple thread sizes into a single case for trade and workshop use.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| M6 x 1.0 Pilot Nose Inc.Drill | — | 35063 | RC35063 | New 2013 | — |
| M8 x 1.25 Pilot Nose | — | 35083 | RC35083 | New 2013 | — |
| M10 x 1.5 Pilot Nose | — | 35103 | — | Obsolete | In 2013; not in 2023 |
| M10 x 1.25 Pilot Nose | — | 37103 | RC37103 | New 2013 | — |
| M12 x 1.75 Pilot Nose | — | 35123 | RC35123 | New 2013 | — |
| M9 x 1.25 Brake Caliper Kit | — | — | RC35093S | New 2023 | Specific to brake caliper repair |
| M14 x 1.5 Sump Plug Kit | — | — | RC37143S | New 2023 | Sump plug thread repair |
| Sizes Included | 2007 Part No. | 2013 Part No. | 2023 Part No. | Status | Notes |
| M5x.8, M6x1, M8x1.25, M10x1.5, M12x1.75 | 35004 | 35004R | RC35004R | Renumbered | 2007: bare number; 2013+: R suffix |
| M6x1, M8x1.25, M10x1.5, M12x1.75, M16x2 | 35005 | 35005R | RC35005R | Renumbered | — |
| V/W range (38008 in 2007) | 38008 | — | — | Obsolete | 2007 only; not in later catalogues |
| O.P.E. range (38007 in 2007) | 38007 | 38007R | — | Obsolete | 2007 & 2013; dropped by 2023 |
| M/C (motorcycle) range | 38006 | 38006R | RC38006R | Renumbered | — |
| M4,M5,M6,M8,M10 | — | 35003R | RC35003R | New 2013 | — |
| M3,M4,M5,M6,M8 | — | — | RC35006R | New 2023 | — |
| M4,M5,M6,M8 Mini | — | 33007R | RC33007R | New 2013 | — |
| M8x1,M10x1,M10x1.25,M12x1.25,M12x1.5 | — | 37000R | RC37000R | New 2013 | — |
| M6,M8x1.25,M10x1.5,M12x1.75,M14x2 | — | 37003R | RC37003R | New 2013 | — |
| M4,M6,M8x1.25,M10x1.5,M12x1.75 | — | 37004R | RC37004R | New 2013 | — |
| M6–M14 fine | — | 38006R | RC38006R | New 2013 | — |
| M6,M8,M10 Mini 1.25 (Range Kit) | — | — | RC37002 | New 2023 | — |
| Metric Fine (various) | — | — | RC37008 | New 2023 | — |
| M6x1.25,M8x1.25,M10x1.5,M12x1.75,M14x1.25 | — | — | RC33005R | New 2023 | — |
| M6,M8,M9,M10,M12 x1.5 | — | — | RC35007R | New 2023 | — |
| M6-M14 Range Inc.Drill | — | — | RC37007R | New 2023 | — |
| M5,M6,M8,M10,M12 Inc.Drill | — | — | RC37009R | New 2023 | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
UNC Thread Kits Cross-Reference (Unified National Coarse)
UNC is the standard coarse thread family in the United States and dominant on US-built equipment, agricultural machinery, and a large slice of Australian industrial inventory. Sizes run from instrument-scale #2-56 through to 1 1/2"-6. For more on identifying UNC vs UNF threads on Australian-spec fasteners, see our choosing the right drill and tap guide.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| #2-56 | 33520 | 33528 | RC33528 | Renumbered | Inc.Drill in 2023 |
| #3-48 | 33530 | 33538 | RC33538 | Renumbered | Inc.Drill in 2023 |
| #4-40 | 33540 | 33548 | RC33548 | Renumbered | Inc.Drill in 2023 |
| #5-40 | 33550 | 33558 | RC33558 | Renumbered | Inc.Drill in 2023 |
| #6-32 | 33560 | 33568 | RC33568 | Renumbered | Inc.Drill in 2023 |
| #8-32 | 33580 | 33588 | RC33588 | Renumbered | Inc.Drill in 2023 |
| #10-24 | 33600 | 33608 | RC33608 | Renumbered | — |
| #12-24 | 33620 | 33628 | RC33628 | Renumbered | — |
| 1/4-20 | 33040 | 33048 | RC33048 | Renumbered | — |
| 5/16-18 | 33050 | 33058 | RC33058 | Renumbered | — |
| 3/8-16 | 33060 | 33068 | RC33068 | Renumbered | — |
| 7/16-14 | 33070 | 33078 | RC33078 | Renumbered | — |
| 1/2-13 | 33080 | 33088 | RC33088 | Renumbered | — |
| 9/16-12 | 33090 | 33098 | RC33098 | Renumbered | — |
| 5/8-11 | 33100 | 33108 | RC33108 | Renumbered | — |
| 11/16-11 | 33110 | 33110 | RC33110 | POA | 2023: POA only |
| 3/4-10 | 33120 | 33128 | RC33128 | Renumbered | — |
| 7/8-9 | 33140 | 33140 | RC33140 | Stable | No change 2007→2013 |
| 1-8 | 33160 | 33160 | RC33160 | Stable | — |
| 1 1/8-7 | 33180 | 33180 | RC33180 | Stable | — |
| 1 1/4-7 | 33200 | 33200 | RC33200 | Stable | — |
| 1 3/8-6 | 33220 | 33220 | RC33220 | Stable | — |
| 1 1/2-6 | 33240 | 33240 | RC33240 | Stable | — |
| 1/2-13 LH | — | 33088LH | RC33088LH | New 2013 | — |
| 1/4-20 LH Inc.Drill | — | 33048LH | RC33048LH | New 2013 | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
AIMS stocks the common UNC range as in-stock variants of the Recoil Thread Repair Kit — UNC 304 Stainless Steel. The RC33004R range kit covers 1/4" to 1/2" UNC — the trade workhorse for US-spec automotive, agricultural and industrial work.
UNF Thread Kits Cross-Reference (Unified National Fine)
UNF (Unified National Fine) shares the same nominal diameters as UNC but with a finer pitch — used where vibration resistance or precise adjustment matters. Common on aerospace, military spec equipment, and high-spec automotive.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| #3-56 | 34530 | 34538 | RC34538 | Renumbered | Inc.Drill in 2023 |
| #4-48 | 34540 | 34548 | RC34548 | Renumbered | Inc.Drill in 2023 |
| #6-40 | 34560 | 34568 | RC34568 | Renumbered | Inc.Drill in 2023 |
| #8-36 | 34580 | 34588 | RC34588 | Renumbered | Inc.Drill in 2023 |
| #10-32 | 34600 | 34608 | RC34608 | Renumbered | — |
| #12-28 | 34620 | 34628 | RC34628 | Renumbered | — |
| 1/4-28 | 34040 | 34048 | RC34048 | Renumbered | — |
| 5/16-24 | 34050 | 34058 | RC34058 | Renumbered | — |
| 3/8-24 | 34060 | 34068 | RC34068 | Renumbered | — |
| 7/16-20 | 34070 | 34078 | RC34078 | Renumbered | — |
| 1/2-20 | 34080 | 34088 | RC34088 | Renumbered | — |
| 9/16-18 | 34090 | 34098 | RC34098 | Renumbered | — |
| 5/8-18 | 34100 | 34108 | RC34108 | Renumbered | — |
| 3/4-16 | 34120 | 34128 | RC34128 | Renumbered | — |
| 7/8-14 | 34140 | 34140 | RC34140 | Stable | — |
| 1-12 | 34160 | 34160 | RC34160 | Stable | — |
| 1-14 UNS Special | 34160-14 | 34160-14 | RC3416014 | Renumbered | 2023: RC3416014 |
| 1 1/16-12 | — | — | RC34170 | New 2023 | POA in 2023 |
| 1 1/8-12 | 34180 | 34180 | RC34180 | Stable | — |
| 1 1/4-12 | 34200 | 34200 | RC34200 | Stable | — |
| 1 3/8-12 | 34220 | 34220 | RC34220 | Stable | — |
| 1 1/2-12 | 34240 | 34240 | RC34240 | Stable | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
AIMS stocks the popular UNF range under the Recoil Thread Repair Kit — UNF 304 Stainless Steel. The RC34004R range kit covers 1/4" to 1/2" UNF in a single case.
UNEF Thread Kits Cross-Reference (Unified National Extra Fine)
UNEF is rarer than UNC or UNF and largely absorbed into range kits in the 2023 catalogue. Most of the standalone UNEF kits are now obsolete or POA — see the Obsolete section below.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| 1/4-32 | 34040-32 | 34040-32 | — | Obsolete | 2007 & 2013; not in 2023 |
| 7/16-24 | 34070-24 | 34070-24 | — | Obsolete | 2007 & 2013; not in 2023 |
| 9/16-20 | 34090-20 | 34090-20 | RC3409020 | Renumbered | 2023: new format RC3409020 |
| 1-18 | — | — | RC3416018 | New 2023 | POA 2023 |
| 1-20 | — | — | RC3416020 | New 2023 | — |
| 7/16-24 Inc.Drill | — | — | RC3407824 | New 2023 | — |
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Special Inch Threads — Harley Davidson, Carburettor, Cummins, UN
This is where the 2007 and 2013 catalogues had a long tail of specialty kits — Harley Davidson 1/4-24, carburettor 5/16-24, Cummins fuel injector threads, and UN-series. Many of these were absorbed into range kits in 2023 or moved to POA status.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| 1/4-24 Harley Davidson | 34040-24 | 34040-24 | — | Obsolete | 2007 & 2013; absorbed into range kit RC34008R in 2023 |
| 7/16-16 Harley Davidson | 34070-16 | 34070-16 | — | Obsolete | Absorbed into RC34008R |
| 7/8-20 Carburettor | 34140-20 | 34140-20 | — | Obsolete | 2007 & 2013; not in 2023 |
| 1-20 Carburettor | 34160-20 | 34160-20 | — | Obsolete | 2007 & 2013; not in 2023 |
| 11/16-16 Cummins | 34110-16 | 34110-16 | RC3411816 | Renumbered | 2023: RC3411816 |
| 7/8-12 UN Special | — | — | RC3414012 | New 2023 | — |
| 7/8-2 UN Special | — | — | RC3414020 | New 2023 | — |
| 1/4-24 UN Inc.Drill | — | — | RC3404824 | New 2023 | — |
| 7/16 UN Inc.Drill | — | — | RC3407816 | New 2023 | — |
| 1 1/8-8 UN | 36180 | 36180 | RC36180 | POA | 2023: POA only |
| 1 1/4-8 UN | 36200 | 36200 | RC36200 | POA | 2023: POA only |
| 1 3/8-8 UN | 36220 | 36220 | RC36220 | POA | 2023: POA only |
| 1 1/2-8 UN | 36240 | 36240 | RC36240 | POA | 2023: POA only |
| 1 5/8-8 UN | 36260 | 36260 | RC36260 | POA | 2023: POA only |
| 1 3/4-8 UN | 36280 | 36280 | RC36280 | POA | 2023: POA only |
| 1 7/8-8 UN | 36300 | 36300 | RC36300 | POA | 2023: POA only |
| 2-8 UN | 36320 | 36320 | RC36320 | POA | 2023: POA only |
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BSW Thread Kits Cross-Reference (British Standard Whitworth)
Whitworth threads are still common on older British, Australian and Commonwealth-built machinery — particularly vintage automotive, plumbing, and machine tools manufactured before metric conversion in the 1970s. AIMS gets steady demand for BSW repair kits, especially the 1/2-12 BSW size. For a broader walk-through of imperial vs metric thread identification, see our tap and die guide.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| 1/8-40 | 32020 | 32028 | RC32028 | Renumbered | — |
| 3/16-24 | 32030 | 32038 | RC32038 | Renumbered | — |
| 1/4-20 | 32040 | 32048 | RC32048 | Renumbered | — |
| 5/16-18 | 32050 | 32058 | RC32058 | Renumbered | — |
| 3/8-16 | 32060 | 32068 | RC32068 | Renumbered | — |
| 7/16-14 | 32070 | 32078 | RC32078 | Renumbered | — |
| 1/2-12 | 32080 | 32088 | RC32088 | Renumbered | — |
| 9/16-12 | 32090 | 32098 | RC32098 | Renumbered | — |
| 5/8-11 | 32100 | 32108 | RC32108 | Renumbered | — |
| 3/4-10 | 32120 | 32128 | RC32128 | Renumbered | — |
| 7/8-9 | 32140 | 32140 | RC32140 | Stable | — |
| 1-8 | 32160 | 32160 | RC32160 | Stable | — |
| 1 1/8-7 | 32180 | 32180 | RC32180 | POA | 2023: POA only |
| 1 1/4-7 | 32200 | 32200 | RC32200 | POA | 2023: POA only |
| 1 3/8-6 | 32220 | 32220 | RC32220 | POA | 2023: POA only |
| 1 1/2-6 | 32240 | 32240 | RC32240 | POA | 2023: POA only |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
AIMS stocks RC32088 (1/2-12 BSW) as a standalone kit, and the broader RC32004R range kit for 1/4" to 1/2" BSW.
BSP Thread Kits Cross-Reference (British Standard Pipe)
BSP threads are everywhere on Australian plumbing and fluid systems — hose fittings, pump bosses, valve bodies, instrumentation. AIMS stocks the common range as variants of the Recoil Thread Repair Kit BSP 304 Stainless Steel.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| 1/8-28 | 31020 | 31028 | RC31028 | Renumbered | — |
| 1/4-19 | 31040 | 31048 | RC31048 | Renumbered | — |
| 3/8-19 | 31060 | 31068 | RC31068 | Renumbered | — |
| 1/2-14 | 31080 | 31080 | RC31080 | Stable | — |
| 5/8-14 | 31100 | 31100 | RC31100 | Stable | — |
| 3/4-14 | 31120 | 31120 | RC31120 | Stable | — |
| 1-11 | 31160 | 31160 | RC31160 | Stable | — |
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NPT Thread Kits Cross-Reference (National Pipe Thread Tapered)
NPT is the US tapered pipe thread — distinct from BSP and not directly interchangeable. Common on US-built pneumatic and hydraulic equipment. For Allthread, studs and matching thread standards see our threaded rod guide.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| 1/8-27 | 36020 | 36028 | RC36028 | Renumbered | — |
| 1/4-18 | 36040 | 36048 | RC36048 | Renumbered | — |
| 3/8-18 | 36060 | 36068 | RC36068 | Renumbered | — |
| 1/2-14 | 36080 | 36080 | RC36080 | Stable | — |
| 3/4-14 | 36120 | 36120 | RC36120 | Stable | Note: 2013 listed as 36128 — minor discrepancy |
| 1-11.5 | — | 36160 | — | Obsolete | In 2013; not in 2023 |
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BSF Thread Kits Cross-Reference (British Standard Fine)
BSF — the fine-thread variant of Whitworth. Used on older British motorcycles, vintage automotive applications, and pre-metric machine tools.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| 3/16-32 | 30030 | 30038 | RC30038 | Renumbered | — |
| 1/4-26 | 30040 | 30048 | RC30048 | Renumbered | — |
| 5/16-22 | 30050 | 30058 | RC30058 | Renumbered | — |
| 3/8-20 | 30060 | 30068 | RC30068 | Renumbered | — |
| 7/16-18 | 30070 | 30078 | RC30078 | Renumbered | — |
| 1/2-16 | 30080 | 30080 | RC30088 | Renumbered | 2013 30080→30088 in some listings |
| 9/16-16 | 30090 | 30090 | RC30098 | Renumbered | — |
| 5/8-14 | 30100 | 30100 | RC30108 | Renumbered | — |
| 3/4-12 | 30120 | 30120 | RC30128 | Renumbered | — |
| 7/8-11 | 30140 | 30140 | RC30140 | Stable | — |
| 1-10 | 30160 | 30160 | RC30160 | Stable | — |
| 1 1/4-9 | 30200 | 30200 | RC30200 | Stable | — |
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AIMS stocks the RC30004R range kit for 1/4" to 1/2" BSF.
BA Thread Kits Cross-Reference (British Association — Fine Instrument Threads)
BA threads are used on precision instruments, scientific equipment, electrical terminations and clock movements. Sizes run from 0 BA (largest) down to 8 BA (smallest).
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| 0 BA | 30500 | 30508 | RC30508 | Renumbered | — |
| 2 BA | 30520 | 30528 | RC30528 | Renumbered | — |
| 4 BA | 30540 | 30548 | RC30548 | Renumbered | — |
| 6 BA | 30560 | 30568 | RC30568 | Renumbered | — |
| BA 0–6 Range Kit | — | — | RC30504R | New 2023 | — |
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BSC / Brass Thread Kits Cross-Reference (British Standard Cycle / 26 TPI Brass)
BSC (also called the 26 TPI Brass thread family) was Recoil's 2007-only catalogue family covering vintage bicycle, Commonwealth electrical and brass-trade threads. The bulk of this family is now Obsolete in 2023 — special order only.
| Thread Size | 2007 Part No. | 2013 Part No. | 2023 Part No. (RC) | Status | Notes |
|---|---|---|---|---|---|
| 1/4-26 | 30040 | — | — | Obsolete | 2007 only (listed under BSC/Brass); not separate in later cats |
| 5/16-26 | 36500 | 36508 | RC36508 | Renumbered | — |
| 3/8-26 | 36600 | 36608 | RC36608 | Renumbered | — |
| 7/16-26 | 36700 | 36708 | RC36708 | Renumbered | — |
| 1/2-26 | 36800 | 36808 | RC36808 | Renumbered | — |
| Sizes Included | 2007 Part No. | 2013 Part No. | 2023 Part No. | Status | Notes |
| UNC 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13 | 33004 | 33004R | RC33004R | Renumbered | — |
| UNF 1/4-28, 5/16-24, 3/8-24, 7/16-20, 1/2-20 | 34004 | 34004R | RC34004R | Renumbered | — |
| BSW 1/4–1/2 | 32004 | 32004R | RC32004R | Renumbered | — |
| BSP 1/8, 1/4, 3/8 | — | 31004R | RC31004R | New 2013 | — |
| BSF 1/4–1/2 | 30004 | 30004R | RC30004R | Renumbered | — |
| NPT 1/8, 1/4, 3/8, 1/2 | — | 36004R | RC36004R | New 2013 | — |
| UNC 1/4, 5/16, 3/8 | — | 33001R | RC33001R | New 2013 | — |
| UNC 1/4–1/2 | — | 33004R | RC33004R | New 2013 | 2013 duplicate listing |
| UNF 1/4, 5/16, 3/8 | — | 34001R | RC34001R | New 2013 | — |
| UNC Mini #4,#6,#8,#10-24,#10-32 | 33002 | 33002R | RC33002R | Renumbered | — |
| BSC 1/4, 5/16, 3/8, 7/16, 1/2 | — | 36001R | RC36001R | New 2013 | — |
| 9/16 & M10x6.8 Popular | — | 34005 | RC34005 | New 2013 | — |
| 1/4-24 Harley, 7/16-16 Harley, 3/8-20 BSF | — | 34008R | RC34008R | New 2013 | Replaces individual Harley kits |
| BA 0–6 | — | — | RC30504R | New 2023 | — |
| 5 x 9/16-20 LH & RH Bike Crank | — | 3409620 | RC3409620 | Renumbered | 2023: RC3409620 |
| 9/16 Left Bike Crank | — | — | RC3409820BCL | New 2023 | — |
| 9/16 Right Bike Crank | — | — | RC3409820BCR | New 2023 | — |
| M6,M8,M9,M10,M12 x1.5 Popular | — | — | RC35007R | New 2023 | — |
| VW range (38008 in 2007) | 38008 | — | — | Obsolete | 2007 only |
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Replacement Parts — Drill Bits, STI Taps, Inserts & Tools
Every Recoil kit is a system: an oversize drill bit, an STI (Screw Thread Insert) tap that cuts the larger hole, the inserts themselves, a manual install tool, and a magnetic tang break tool to snap off the insert's installation tang once it's seated. Lose or break any one of these and the rest of the kit becomes useless — except you can buy each part separately from the AIMS Recoil collection.
The tables below list, for each current RC kit, the exact replacement parts you need. Drill bits are cross-referenced against Sutton Tools D180 codes — Sutton is the AIMS-preferred HSS drill bit brand, and (relevantly) Sutton Tools is Recoil's parent company, so the drill cross-references are first-party data. For a wider view of drill bit sizing across metric and imperial, see our threading tap metric/imperial size chart.
What's an STI tap?
STI stands for Screw Thread Insert. An STI tap looks like a standard tap but cuts a slightly larger hole — the size needed to accept the Recoil insert. You can't substitute a standard tap. Recoil's STI taps are sold in three styles: Taper (long lead-in, for through-holes), Intermediate (medium lead, the general-purpose choice listed in the tables below), and Bottoming (short lead, for blind holes where you need threads right to the bottom).
AIMS stocks all three styles — see Metric Intermediate, Metric Bottoming, and the matching UNC Taper versions.
Metric Coarse Replacement Parts
| Thread Size | Current Kit (RC) | HSS Drill Bit | STI Tap | Inserts (Pack of 10) | Install Tool | Tang Break Tool |
|---|---|---|---|---|---|---|
| M2 x 0.4 | RC35028 | Included (std HSS) 2.2mm Sutton D180 0220 |
RC45025 | RC25022, RC25023, RC25024 † | RC5006121 | RC59060M |
| M2.2 x 0.45 | RC35018 | Included (std HSS) 2.5mm Sutton D180 0250 |
RC45015 | RC25013 † | RC5006121 | RC59060M |
| M2.5 x 0.45 | RC35258 | Included (std HSS) 2.8mm Sutton D180 0280 |
RC45255 | RC25253, RC25254 † | RC5008917 | — |
| M3 x 0.5 | RC35038 | Included (std HSS) 3.3mm Sutton D180 0330 |
RC45035 | RC25032, RC25033, RC25034 † | RC5008917 | RC59090M |
| M3.5 x 0.6 | RC35358 | — | RC45355 | RC25353 † | RC5009515 | — |
| M4 x 0.7 | RC35048 | Included (std HSS) 4.5mm Sutton D180 0450 |
RC45045 | RC25042, RC25043, RC25044 † | RC5012513 | RC59080M |
| M5 x 0.8 | RC35058 | Included (std HSS) 5.5mm Sutton D180 0550 |
RC45055 | RC25052, RC25053, RC25054 † | RC501569 | RC59160M |
| M6 x 1.0 | RC35068 | Included (std HSS) 6.8mm Sutton D180 0680 |
RC45065 | RC25062, RC25063, RC25064, RC25065 † | RC501885 | RC59190M |
| M7 x 1.0 | RC35078 | Included (std HSS) 7.8mm Sutton D180 0780 |
RC45075 | RC25072, RC25073, RC25074 † | RC502194 | RC59200M |
| M8 x 1.25 | RC35088 | Included (std HSS) 8.8mm Sutton D180 0880 |
RC45085 | RC25082, RC25083, RC25084, RC25085 † | RC502507 | RC59250M |
| M9 x 1.25 | RC35098 | Included (std HSS) 9.5mm Sutton D180 0950 |
RC45095 | RC25092, RC25093 † | RC502815 | RC59310M |
| M10 x 1.5 | RC35108 | Included (std HSS) 11.0mm Sutton D180 1100 |
RC45105 | RC25102, RC25103, RC25104, RC25105 † | RC502814 | RC59280M |
| M11 x 1.5 | RC35118 | Included (std HSS) 12.5mm Sutton D180 1250 |
RC45115 | RC25112, RC25113 † | RC503444 | RC59340M |
| M12 x 1.75 | RC35128 | Not included (>13.0mm — outside D180 range) |
RC45125 | RC25122, RC25123, RC25124 † | RC503751 | RC59380M |
| M13 x 1.75 | RC35138 | Not included (>13.0mm — outside D180 range) |
RC45135 | RC25133 † | RC503751 | — |
| M14 x 2.0 | RC35148 | — | RC45145 | RC25142, RC25143, RC25144 † | RC504380 | — |
| M15 x 2.0 | RC35158 | — | RC45155 | RC25153 † | RC504380 | — |
| M16 x 2.0 | RC35168 | — | RC45165 | RC25162, RC25163, RC25164, RC25165 † | RC505000 | — |
| M18 x 2.5 | RC35188 | — | RC45185 | RC25183 † | RC505910 | — |
| M20 x 2.5 | RC35208 | — | RC45205 | RC25203 † | RC505910 | — |
| M22 x 2.5 | RC35220 | — | RC45225 | RC25223 † | RC50688 | — |
| M24 x 3.0 | RC35240 | — | RC45245 | RC25243 † | RC50750 | — |
| M27 x 3.0 | RC35270 | — | RC45275 | RC25243 † | RC50875 | — |
| M30 x 3.5 | RC35300 | — | RC45305 | RC25303 † | RC51000 | — |
| M30 x 3.0 | RC353003 | — | RC453053 | RC25303 † | RC51000 | — |
| M33 x 3.5 | RC35330 | — | RC45335 | RC25303 † | RC51063 | — |
| M36 x 4.0 | RC35360 | — | RC45365 | RC25303 † | RC51063 | — |
| M39 x 4.0 | RC35390 | — | RC45395 | RC25303 † | RC51250 | — |
| M42 x 4.5 | RC35420 | — | RC45425 | RC25303 † | RC51250 | — |
| M42 x 4.0 | RC354204 | — | RC45425 | RC25303 † | RC51250 | — |
| M45 x 4.5 | RC35450 | — | RC45425 | RC25303 † | RC51250 | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
Metric Medium & Extra Fine Replacement Parts
| Thread Size | Current Kit (RC) | HSS Drill Bit | STI Tap | Inserts (Pack of 10) | Install Tool | Tang Break Tool |
|---|---|---|---|---|---|---|
| M8 x 1.0 | RC37088 | Included (std HSS) 8.5mm Sutton D180 0850 |
RC47085 | RC27082, RC27083, RC27084 † | RC502507 | RC59250M |
| M12 x 1.5 | RC37128 | Included (std HSS) 13.0mm Sutton D180 1300 |
RC47125 | RC27122, RC27123, RC27124 † | RC503751 | RC59380M |
| M13 x 1.5 | RC37138 | Not included (>13.0mm — outside D180 range) |
RC47135 | RC27133 † | RC503751 | — |
| M14 x 1.5 | RC37148 | — | RC47145 | RC27142, RC27143, RC27144 † | RC504380 | — |
| M15 x 1.5 | RC37158 | — | RC47155 | RC27153 † | RC504380 | — |
| M16 x 1.5 | RC37168 | — | RC47165 | RC27162, RC27163, RC27164, RC27165 † | RC505000 | — |
| M18 x 2.0 | RC37188 | — | RC47185 | RC27183 † | RC505910 | — |
| M20 x 2.0 | RC37208 | — | RC47205 | RC27203 † | RC505910 | — |
| M22 x 2.0 | RC37220 | — | RC47225 | RC27223 † | RC50688 | — |
| M24 x 2.0 | RC37240 | — | RC47245 | RC27243 † | RC50750 | — |
| M27 x 2.0 | RC37270 | — | RC47275 | RC27243 † | RC50875 | — |
| M30 x 2.0 | RC37300 | — | RC47305 | RC27243 † | RC51000 | — |
| M33 x 2.0 | RC37330 | — | RC47335 | RC27243 † | RC51063 | — |
| M36 x 3.0 | RC37360 | — | RC47365 | RC27243 † | RC51063 | — |
| M39 x 3.0 | RC37390 | — | RC47395 | RC27243 † | RC51250 | — |
| M42 x 3.0 | RC37420 | — | RC47425 | RC27243 † | RC51250 | — |
| M10 x 1.0 | RC38108 | Included (std HSS) 10.5mm Sutton D180 1050 |
RC48105 | RC28102, RC28103 † | RC502814 | RC59280M |
| M11 x 1.0 | RC38118 | Included (std HSS) 11.5mm Sutton D180 1150 |
RC48115 | RC28113 † | RC503444 | RC59340M |
| M12 x 1.25 | RC38128 | Included (std HSS) 12.8mm Sutton D180 1280 |
RC48125 | RC28122, RC28123, RC28124 † | RC503751 | RC59380M |
| M12 x 1.0 | RC381201 | Included (std HSS) 12.5mm Sutton D180 1250 |
RC481251 | RC28122, RC28123 † | RC503751 | RC59380M |
| M13 x 1.25 | RC38138 | — | RC48135 | RC28133 † | RC503751 | — |
| M14 x 1.25 (multi-insert) | RC38147 | — | RC48145 | RC28147 † | RC504380 | RC59380M |
| M14 x 1.25 | RC381481 | — | RC48145 | RC28148, RC28149 † | RC504380 | RC59380M |
| M18 x 1.5 | RC381881 | — | RC48185 | RC28183, RC28189 † | RC505910 | — |
| M18 x 1.5 Inconel | RC381881X | — | RC48185 | RC28183 | RC505910 | — |
| M20 x 1.5 | RC38208 | — | RC48205 | RC28203 † | RC505910 | — |
| M22 x 1.5 | RC38220 | — | RC48225 | RC28223 † | RC50688 | — |
| M24 x 1.5 | RC38240 | — | RC48245 | RC28243 † | RC50750 | — |
| M26 x 1.5 | RC38260 | — | RC48265 | RC28263 † | RC50875 | — |
| M27 x 1.5 | RC38270 | — | RC48275 | RC28263 † | RC50875 | — |
| M30 x 1.5 | RC38300 | — | RC48305 | RC28263 † | RC51000 | — |
| M36 x 1.5 | RC38360 | — | RC48365 | RC28263 † | RC51063 | — |
| M39 x 2.0 | RC38390 | — | RC48395 | RC28263 † | RC51250 | — |
| M42 x 2.0 | RC38420 | — | RC48425 | RC28263 † | RC51250 | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
Spark Plug & Left Hand Replacement Parts
| Thread Size | Current Kit (RC) | HSS Drill Bit | STI Tap | Inserts (Pack of 10) | Install Tool | Tang Break Tool |
|---|---|---|---|---|---|---|
| M10 x 1.0 Trade | RC381082 | — | RC48105 | RC2814084 | RC502814 | RC59280M |
| M12 x 1.25 Trade | RC381202 | — | RC48125 | RC28140124, RC28140164 | RC503751 | RC59380M |
| M14 x 1.25 Standard | RC38140 | — | RC48145 | RC38140 | RC504380 | — |
| M14 x 1.25 Trade | RC381482 | — | RC48145 | RC28140124, RC28143125 | RC504380 | RC59380M |
| M18 x 1.5 Trade | RC38188 | — | RC48185 | RC28183, RC28189 † | RC505910 | — |
| Plugsaver M14 x 1.25 | RC38148 | — | RC48145 | RC28143125 | RC504380 | — |
| M6 x 1.0 LH Inc.Drill | RC35068LH | Included (std HSS) 6.8mm Sutton D180 0680 |
RC45065LH | RC25063LH † | RC501885 | RC59190M |
| M8 x 1.25 LH Inc.Drill | RC35088LH | Included (std HSS) 8.8mm Sutton D180 0880 |
RC45085LH | RC25083LH † | RC502507 | RC59250M |
| M10 x 1.5 LH Inc.Drill | RC35108LH | Included (std HSS) 11.0mm Sutton D180 1100 |
RC45105LH | RC25103LH † | RC502814 | RC59280M |
| M12 x 1.75 LH Inc.Drill | RC35128LH | Not included (>13.0mm — outside D180 range) |
RC45125LH | RC25123LH † | RC503751 | RC59380M |
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Pilot Nose & Range Kit Replacement Parts
| Thread Size | Current Kit (RC) | HSS Drill Bit | STI Tap | Inserts (Pack of 10) | Install Tool | Tang Break Tool |
|---|---|---|---|---|---|---|
| M6 x 1.0 Pilot Nose Inc.Drill | RC35063 | Included (std HSS) 6.8mm Sutton D180 0680 |
RC45067 | RC25062, RC25063 † | RC501885 | RC59190M |
| M8 x 1.25 Pilot Nose | RC35083 | Not included | RC45087 | RC25082, RC25083 † | RC502507 | RC59250M |
| M10 x 1.25 Pilot Nose | RC37103 | Included (std HSS) 10.5mm Sutton D180 1050 |
RC47105 | RC27102, RC27103 † | RC502814 | RC59280M |
| M12 x 1.75 Pilot Nose | RC35123 | Not included | RC45127 | RC25122, RC25123 † | RC503751 | RC59380M |
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UNC Replacement Parts
| Thread Size | Current Kit (RC) | HSS Drill Bit | STI Tap | Inserts (Pack of 10) | Install Tool | Tang Break Tool |
|---|---|---|---|---|---|---|
| #2-56 | RC33528 | Included (std HSS) #4 (2.8mm) Sutton D180 0280 |
RC43525 | RC23522, RC23523, RC23524 † | RC5006117 | RC59060M |
| #3-48 | RC33538 | Included (std HSS) #5 (3.2mm) Sutton D180 0320 |
RC43535 | RC23533 † | RC5006917 | RC59070M |
| #4-40 | RC33548 | Included (std HSS) #6 (3.5mm) Sutton D180 0350 |
RC43545 | RC23542, RC23543, RC23544 † | RC5007717 | RC59080M |
| #5-40 | RC33558 | Included (std HSS) #6 (3.5mm) Sutton D180 0350 |
RC43555 | RC23552, RC23553 † | RC5008918 | RC59080M |
| #6-32 | RC33568 | Included (std HSS) #8 (4.0mm) Sutton D180 0400 |
RC43565 | RC23562, RC23563, RC23564 † | RC5009516 | RC59100M |
| #8-32 | RC33588 | Included (std HSS) #8 (4.0mm) Sutton D180 0400 |
RC43585 | RC23582, RC23583, RC23584 † | RC5012514 | RC59130M |
| #10-24 | RC33608 | Included (std HSS) #10 (4.8mm) Sutton D180 0480 |
RC43605 | RC23602, RC23603, RC23604 † | RC5014011 | RC59140M |
| #12-24 | RC33628 | Included (std HSS) #11 (4.9mm) Sutton D180 0490 |
RC43625 | RC23622, RC23623 † | RC5015610 | RC59140M |
| 1/4-20 | RC33048 | Included (std HSS) 17/64" (6.7mm) Sutton D180 0670 |
RC43045 | RC23042, RC23043, RC23044 † | RC5018810 | RC59190M |
| 5/16-18 | RC33058 | Included (std HSS) 21/64" (8.3mm) Sutton D180 0830 |
RC43055 | RC23052, RC23053, RC23054 † | RC502198 | RC59220M |
| 3/8-16 | RC33068 | Included (std HSS) 13/32" (10.3mm) Sutton D180 1030 |
RC43065 | RC23062, RC23063, RC23064 † | RC502507 | RC59250M |
| 7/16-14 | RC33078 | Included (std HSS) 29/64" (11.5mm) Sutton D180 1150 |
RC43075 | RC23072, RC23073 † | RC503443 | RC59340M |
| 1/2-13 | RC33088 | Not included (>13.0mm — outside D180 range) |
RC43085 | RC23082, RC23083 † | RC503752 | RC59380M |
| 9/16-12 | RC33098 | Not included (>13.0mm — outside D180 range) |
RC43095 | RC23093 † | RC504380 | RC59380M |
| 5/8-11 | RC33108 | Not included (>13.0mm — outside D180 range) |
RC43105 | RC23102, RC23103 † | RC505000 | RC59380M |
| 11/16-11 | RC33110 | — | RC43115 | RC23113 † | RC505000 | — |
| 3/4-10 | RC33128 | — | RC43125 | RC23122, RC23123 † | RC505000 | — |
| 7/8-9 | RC33140 | — | RC43145 | RC23143 † | RC50688 | — |
| 1-8 | RC33160 | — | RC43165 | RC23163 † | RC50750 | — |
| 1 1/8-7 | RC33180 | — | RC43185 | RC23182, RC23183 † | RC50875 | — |
| 1 1/4-7 | RC33200 | — | RC43205 | RC23202, RC23203 † | RC51000 | — |
| 1 3/8-6 | RC33220 | — | RC43225 | RC23223 † | RC51063 | — |
| 1 1/2-6 | RC33240 | — | RC43245 | RC23242, RC23243 † | RC51063 | — |
| 1/2-13 LH | RC33088LH | Not included (>13.0mm — outside D180 range) |
RC43085 | RC23082, RC23083 † | RC503752 | RC59380M |
| 1/4-20 LH Inc.Drill | RC33048LH | Included (std HSS) 17/64" (6.7mm) Sutton D180 0670 |
RC43045 | RC23042, RC23043 † | RC5018810 | RC59190M |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
UNF Replacement Parts
| Thread Size | Current Kit (RC) | HSS Drill Bit | STI Tap | Inserts (Pack of 10) | Install Tool | Tang Break Tool |
|---|---|---|---|---|---|---|
| #3-56 | RC34538 | Included (std HSS) #5 (3.2mm) Sutton D180 0320 |
RC44535 | RC04535 † | RC5006117 | RC59060M |
| #4-48 | RC34548 | Included (std HSS) #6 (3.5mm) Sutton D180 0350 |
RC44545 | RC04542, RC04543, RC04544 † | RC5007717 | RC59080M |
| #6-40 | RC34568 | Included (std HSS) #8 (4.0mm) Sutton D180 0400 |
RC44565 | RC04562, RC04563, RC04564 † | RC5009517 | RC59100M |
| #8-36 | RC34588 | Included (std HSS) #10 (4.8mm) Sutton D180 0480 |
RC44585 | RC04582, RC04583, RC04584 † | RC5012514 | RC59130M |
| #10-32 | RC34608 | Included (std HSS) #10 (4.8mm) Sutton D180 0480 |
RC44605 | RC04602, RC04603, RC04604 † | RC5015611 | RC59140M |
| #12-28 | RC34628 | Included (std HSS) #11 (4.9mm) Sutton D180 0490 |
RC44625 | RC04622, RC04623, RC04624 † | RC5015610 | RC59140M |
| 1/4-28 | RC34048 | Included (std HSS) 17/64" (6.7mm) Sutton D180 0670 |
RC44045 | RC04042, RC04043, RC04044 † | RC5018810 | RC59190M |
| 5/16-24 | RC34058 | Included (std HSS) 21/64" (8.3mm) Sutton D180 0830 |
RC44055 | RC04052, RC04053, RC04054 † | RC502508 | RC59220M |
| 3/8-24 | RC34068 | Included (std HSS) 13/32" (10.3mm) Sutton D180 1030 |
RC44065 | RC04062, RC04063, RC04064 † | RC503136 | RC59250M |
| 7/16-20 | RC34078 | Included (std HSS) 29/64" (11.5mm) Sutton D180 1150 |
RC44075 | RC04072, RC04073, RC04074 † | RC503443 | RC59340M |
| 1/2-20 | RC34088 | Not included (>13.0mm — outside D180 range) |
RC44085 | RC04082, RC04083, RC04084 † | RC503753 | RC59380M |
| 9/16-18 | RC34098 | Not included (>13.0mm — outside D180 range) |
RC44095 | RC04092, RC04093 † | RC504380 | RC59380M |
| 5/8-18 | RC34108 | Not included (>13.0mm — outside D180 range) |
RC44105 | RC04102, RC04103, RC04104 † | RC504380 | RC59380M |
| 3/4-16 | RC34128 | — | RC44125 | RC04122, RC04123, RC04124 † | RC505000 | — |
| 7/8-14 | RC34140 | — | RC44145 | RC04142, RC04143, RC04144 † | RC50688 | — |
| 1-12 | RC34160 | — | RC44165 | RC04162, RC04163, RC04164 † | RC50750 | — |
| 1-14 UNS Special | RC3416014 | — | RC44165 | RC2416314 † | RC50750 | — |
| 1 1/8-12 | RC34180 | — | RC44185 | RC04182, RC04183 † | RC50875 | — |
| 1 1/4-12 | RC34200 | — | RC44205 | RC04202, RC04203, RC04204 † | RC51000 | — |
| 1 3/8-12 | RC34220 | — | RC44225 | RC04222, RC04223, RC04224 † | RC51063 | — |
| 1 1/2-12 | RC34240 | — | RC44245 | RC04242, RC04243, RC04244 † | RC51063 | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
BSW, BSP, BSF, BA Replacement Parts
| Thread Size | Current Kit (RC) | HSS Drill Bit | STI Tap | Inserts (Pack of 10) | Install Tool | Tang Break Tool |
|---|---|---|---|---|---|---|
| 1/8-40 | RC32028 | Included (std HSS) 3.5mm Sutton D180 0350 |
RC42025 | RC02022, RC02023, RC02024 † | RC5008919 | RC59060M |
| 3/16-24 | RC32038 | Included (std HSS) 5.5mm Sutton D180 0550 |
RC42035 | RC02032, RC02033, RC02034 † | RC501409 | RC59060M |
| 1/4-20 | RC32048 | Included (std HSS) 6.6mm Sutton D180 0660 |
RC42045 | RC02042, RC02043, RC02044 † | RC501885 | RC59190M |
| 5/16-18 | RC32058 | Included (std HSS) 8.3mm Sutton D180 0830 |
RC42055 | RC02052, RC02053, RC02054 † | RC502507 | RC59220M |
| 3/8-16 | RC32068 | Included (std HSS) 10.0mm Sutton D180 1000 |
RC42065 | RC02062, RC02063, RC02064 † | RC502507 | RC59250M |
| 7/16-14 | RC32078 | Included (std HSS) 11.5mm Sutton D180 1150 |
RC42075 | RC02072, RC02073, RC02074 † | RC503441 | RC59340M |
| 1/2-12 | RC32088 | Not included (>13.0mm — outside D180 range) |
RC42085 | RC02082, RC02083, RC02084 † | RC503752 | RC59380M |
| 9/16-12 | RC32098 | Not included (>13.0mm — outside D180 range) |
RC42095 | RC02092, RC02093, RC02094 † | RC504380 | RC59380M |
| 5/8-11 | RC32108 | Not included (>13.0mm — outside D180 range) |
RC42105 | RC02102, RC02103, RC02104 † | RC504380 | RC59380M |
| 3/4-10 | RC32128 | — | RC42125 | RC02122, RC02123, RC02124 † | RC504380 | — |
| 7/8-9 | RC32140 | — | RC42165 | RC02142, RC02143, RC02144 † | RC50688 | — |
| 1-8 | RC32160 | — | RC42165 | RC02162, RC02163, RC02164 † | RC50750 | — |
| 1 1/8-7 | RC32180 | — | RC42185 | RC02182, RC02183, RC02184 † | RC50875 | — |
| 1 1/4-7 | RC32200 | — | RC42205 | RC02202, RC02203, RC02204 † | RC51000 | — |
| 1 3/8-6 | RC32220 | — | RC42225 | RC02222, RC02223, RC02224 † | RC51063 | — |
| 1 1/2-6 | RC32240 | — | RC42245 | RC02242, RC02243, RC02244 † | RC51063 | — |
| 1/8-28 | RC31028 | Included (std HSS) 9.7mm Sutton D180 0970 |
RC41025 | RC01022, RC01023, RC01024 † | RC503135 | RC59190M |
| 1/4-19 | RC31048 | Not included (>13.0mm — outside D180 range) |
RC41045 | RC01042, RC01043, RC01044 † | RC504380 | RC59310M |
| 3/8-19 | RC31068 | Not included (>13.0mm — outside D180 range) |
RC41065 | RC01062, RC01063, RC01064 † | RC504380 | RC59310M |
| 1/2-14 | RC31080 | Not included (>13.0mm — outside D180 range) |
RC41085 | RC01082, RC01083, RC01084 † | RC504380 | RC59380M |
| 5/8-14 | RC31100 | — | RC41105 | RC01102, RC01103, RC01104 † | RC505000 | — |
| 3/4-14 | RC31120 | — | RC41125 | RC01122, RC01123, RC01124 † | RC505000 | — |
| 1-11 | RC31160 | — | RC41165 | RC01162, RC01163, RC01164 † | RC505910 | — |
| 3/16-32 | RC30038 | Included (std HSS) 2.5mm Sutton D180 0250 |
RC40035 | RC20032, RC20033, RC20034 † | RC5008919 | RC59060M |
| 1/4-26 | RC30048 | Included (std HSS) 6.5mm Sutton D180 0650 |
RC40045 | RC20042, RC20043 † | RC501885 | RC59190M |
| 5/16-22 | RC30058 | Included (std HSS) 8.1mm Sutton D180 0810 |
RC40055 | RC20052, RC20053, RC20054 † | RC502194 | RC59220M |
| 3/8-20 | RC30068 | Included (std HSS) 9.7mm Sutton D180 0970 |
RC40065 | RC20062, RC20063, RC20064 † | RC502507 | RC59250M |
| 7/16-18 | RC30078 | Included (std HSS) 11.4mm Sutton D180 1140 |
RC40075 | RC20072, RC20073, RC20074 † | RC503441 | RC59340M |
| 1/2-16 | RC30088 | Included (std HSS) 13.0mm Sutton D180 1300 |
RC40085 | RC20082, RC20083, RC20084 † | RC503752 | RC59380M |
| 9/16-16 | RC30098 | — | RC40095 | RC20093 † | RC504380 | — |
| 5/8-14 | RC30108 | — | RC40105 | RC20103 † | RC504380 | — |
| 3/4-12 | RC30128 | — | RC40125 | RC20123 † | RC504380 | — |
| 7/8-11 | RC30140 | — | RC40145 | RC20143 † | RC50688 | — |
| 1-10 | RC30160 | — | RC40165 | RC20163 † | RC50750 | — |
| 1 1/4-9 | RC30200 | — | RC40205 | RC20163 † | RC51000 | — |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
If the kit you need isn't in the table above (older 2007 or 2013 codes only, or Obsolete status), the parts above are also sold individually and can usually substitute. Ring AIMS with the original kit number — Sam or one of the team will work out the current replacement parts.
The standalone insert removal tool — RC50003 Insert Extraction Tool — covers M4 through M24 / #6 through 1" UNC and is essential gear for any workshop doing regular thread repair. AIMS also stocks the threadlockers commonly used after insert installation: see our Loctite 243 guide for medium-strength threadlock applications, and the Loctite 577 guide for pipe thread sealing.
Obsolete Kits — Identifying Alternatives
14 kits that appeared in the 2007 and/or 2013 catalogues did not make the cut for 2023. Most were absorbed into range kits or replaced by closer-fitting current sizes. If you've got an obsolete code on an old purchase order, the table below lists each one with a suggested current alternative. When in doubt, contact AIMS — we can usually source the obsolete kit on special order through Recoil/Sutton Tools, or recommend the closest current RC equivalent from the Recoil collection.
| Thread Size | Section | Last Known Code (2007/2013) | Suggested Current Alternative |
|---|---|---|---|
| M9 x 1.0 | METRIC MEDIUM THREAD KITS | 37090 | Contact AIMS — special order or closest current RC kit |
| M11 x 1.25 | METRIC MEDIUM THREAD KITS | 37118 | Contact AIMS — special order or closest current RC kit |
| M10 x 1.5 Pilot Nose | PILOT NOSE TAP KITS | 35103 | Contact AIMS — special order or closest current RC kit |
| V/W range (38008 in 2007) | PILOT NOSE TAP KITS | 38008 | Contact AIMS — special order or closest current RC kit |
| O.P.E. range (38007 in 2007) | PILOT NOSE TAP KITS | 38007R | Contact AIMS — special order or closest current RC kit |
| 1/4-32 | UNEF — UNIFIED NATIONAL EXTRA FINE | 34040-32 | Contact AIMS — UNEF range largely absorbed into UNF / range kits |
| 7/16-24 | UNEF — UNIFIED NATIONAL EXTRA FINE | 34070-24 | Contact AIMS — UNEF range largely absorbed into UNF / range kits |
| 1/4-24 Harley Davidson | SPECIAL INCH THREADS — HARLEY, CARBURETTOR, CUMMINS, UN | 34040-24 | Contact AIMS — special order or closest current RC kit |
| 7/16-16 Harley Davidson | SPECIAL INCH THREADS — HARLEY, CARBURETTOR, CUMMINS, UN | 34070-16 | Contact AIMS — special order or closest current RC kit |
| 7/8-20 Carburettor | SPECIAL INCH THREADS — HARLEY, CARBURETTOR, CUMMINS, UN | 34140-20 | Contact AIMS — special order or closest current RC kit |
| 1-20 Carburettor | SPECIAL INCH THREADS — HARLEY, CARBURETTOR, CUMMINS, UN | 34160-20 | Contact AIMS — special order or closest current RC kit |
| 1-11.5 | NPT — NATIONAL PIPE THREAD (TAPERED) | 36160 | Contact AIMS — closest BSP equivalent or special order |
| 1/4-26 | BSC / BRASS — BRITISH STANDARD CYCLE / BRASS THREADS (26 TPI) | 30040 | Contact AIMS — discontinued thread family, custom sourcing |
| VW range (38008 in 2007) | BSC / BRASS — BRITISH STANDARD CYCLE / BRASS THREADS (26 TPI) | 38008 | Contact AIMS — discontinued thread family, custom sourcing |
Can't find your kit above? AIMS sources historic, obsolete and special-order Recoil kits direct. Contact us with the part number you need and we'll track it down for you.
Why Recoil Renumbered — Understanding the Three Generations
Three changes happened over fifteen years.
2007 — the original numbering
The 2007 catalogue used 5-digit numeric codes ending in a 0. The first two digits identified the thread family (35 = Metric Coarse, 33 = UNC, 32 = BSW, and so on), the next two coded the size, and the final 0 marked the standard kit. Spark plug trade kits used a hyphenated sub-code (38140 base, 38140-2 for trade pack).
2013 — the suffix shift
In 2013 Recoil moved every standard kit's trailing 0 to an 8. The reasoning at the time was inventory and barcode rationalisation — the 8-suffix freed up the 0-suffix codes for bulk and OEM-only variants. Hyphenated spark plug trade codes also shifted (38140-2 → 38148-2).
2023 — the RC prefix
The 2023 catalogue added a literal RC prefix to every part number. This was a global brand-consolidation move — Recoil products had been distributed under various sub-brands in different markets, and the RC prefix gave the line a single identifying signature worldwide. Many kits were also re-organised into "Inc.Drill" variants (the matching HSS drill bit packed inside the kit) and a fresh batch of range kits with the R suffix were introduced.
Recoil has been a Sutton Tools brand since the early 2000s — Sutton, the Australian-owned engineering tool manufacturer headquartered in Melbourne, owns the Recoil brand globally. That's why you'll see Sutton D180 drill bit codes throughout this guide as the matched replacements — Sutton is making the drill bits that Recoil specifies. AIMS stocks the matching Sutton drills in the Sutton Tools collection.
Standards & Specifications
Recoil inserts and the holes they fit are governed by a handful of international and Australian thread standards. The kits themselves are manufactured to military and aerospace specifications, which is why Recoil inserts are an accepted repair method on certified aircraft and defence equipment.
Thread standards by family
- Metric kits — AS 1275 (Metric Screw Threads for Fasteners) [VERIFY: edition year — AS 1275-1985 R2016 to best knowledge] and ISO 965 (ISO Metric Screw Threads — tolerances). The diameter and pitch designations in the tables above (e.g. M6 x 1.0) follow ISO 965 nomenclature.
- UNC and UNF kits — ASME B1.1 (Unified Inch Screw Threads) [VERIFY: ASME B1.1-2019 is the most recent edition I'm aware of]. Defines the #2-56 through 4-4 thread series Recoil supplies kits for.
- BSW and BSF kits — BS 84 (Parallel Screw Threads of Whitworth Form) [VERIFY: current edition status — BS 84 last fully revised 1956 and may be partially withdrawn].
- BSP kits — ISO 228-1 (Pipe threads where pressure-tight joints are not made on the threads) for parallel BSP. BS 21 / ISO 7-1 for tapered BSPT variants.
- NPT kits — ANSI/ASME B1.20.1 (Pipe Threads, General Purpose, Inch) [VERIFY: ASME B1.20.1-2013 to best knowledge].
- BA kits — BS 93 (British Association Screw Threads) [VERIFY: BS 93 status — may be withdrawn / historical reference only].
Insert manufacturing standards
- NASM 33537 (formerly MIL-S-7742) — the US National Aerospace Standard governing helical coil thread inserts. Recoil inserts are manufactured to NASM 33537 for the Free Running grade. [VERIFY: NASM 33537 supersedes MIL-S-7742 — confirm current revision]
- NASM 8846 (formerly MIL-I-8846) — covers screw-locking (locking) helical coil inserts, with the polygonal locking coil. [VERIFY: NASM 8846 supersedes MIL-I-8846 — confirm current revision]
- Recoil inserts in stainless steel are manufactured from 304 stainless steel as standard, with Inconel X-750 available for high-temperature applications (exhaust manifolds, turbocharger housings, gas turbine components — service temperatures above 425°C).
If you're specifying Recoil for a certified application (aviation, defence, rail, pressure-rated industrial), contact AIMS — we can supply NASM-compliant certification paperwork on request.
How AIMS Sources Recoil
AIMS Industrial stocks the full current Recoil range as an authorised Australian distributor. The Recoil collection at AIMS includes:
- Single-size thread repair kits in metric, UNC, UNF, BSP, BSW, BSF, BA and spark plug threads — the standard workshop kits with everything needed for one specific size.
- Range kits — multi-size cases for trade and workshop use. RC35004R (M5–M12), RC35005R (M6–M16), RC33004R (1/4–1/2 UNC), RC34004R (1/4–1/2 UNF), RC32004R (1/4–1/2 BSW), RC30004R (1/4–1/2 BSF).
- Spark plug kits — RC381082, RC381202, RC38140, RC381482, RC38188, plus the in-vehicle RC38148 Plug Saver.
- Replacement inserts — sold in packs of 10 as variants of Recoil Insert — Metric 304 Stainless Steel, UNC, UNF, plus bulk 05xxx packs for high-volume users.
- STI taps — Taper, Intermediate and Bottoming styles in metric and UNC.
- Install & tang break tools — manual install tools (RC5006121, RC5008917, RC5006917, etc.) and magnetic tang break tools (RC59060M, RC59070M, RC59080M).
- Insert extraction — RC50003, covering M4 through M24 / #6 through 1" UNC.
- Keysert Light — solid-bushing inserts for higher load applications. Recoil Keysert Light — Metric Stainless Steel.
For Obsolete (2007/2013-only) kits, POA kits, and historic codes that don't have a direct current equivalent, AIMS has a special-order channel direct to Recoil/Sutton Tools — lead times are usually 2–4 weeks. Ring (02) 9773 0122 with the original code and we'll source it.
Trade and procurement accounts are available — automatic credit for government bodies, defence prime contractors and Tier-1 customers. Contact us or apply for a trade account.
Frequently Asked Questions
What's the difference between 2007, 2013 and 2023 Recoil part numbers?
Recoil changed its catalogue numbering twice. In 2013 the trailing 0 on every standard kit code was changed to an 8 (e.g. 35060 became 35068). In 2023 a literal RC prefix was added to every part number (e.g. 35068 became RC35068). The kit itself — thread size, insert, drill, tap, install tool — is functionally the same across all three generations. Only the part number changed.
What does the RC prefix mean on Recoil kits?
RC simply stands for Recoil. It was added globally in 2023 as a brand-consolidation move so every Recoil product has the same identifying prefix worldwide. The number after the prefix is unchanged from the 2013 catalogue.
Can I still buy Recoil kits with old part numbers?
Old numbers (the 2007 and 2013 codes) won't appear in any current Recoil price list, but the equivalent current RC kit is almost always available. Use the tables in this guide to translate your old code to the 2023 RC code, then search the AIMS Recoil collection or ring (02) 9773 0122. For genuinely obsolete kits (about 14 in the catalogue), AIMS can usually special-order through Recoil/Sutton Tools — lead times around 2–4 weeks.
What does 'POA' mean on Recoil kits?
POA stands for Price on Application. The kit is still listed by Recoil and can be supplied, but pricing isn't published in the standard 2023 catalogue — usually because it's low-volume, specialty, or built to order. Around 17 kits sit in POA status (mostly large sizes like 1.5" BSW and 2" UN, plus Cummins and Harley Davidson specialty threads). Contact AIMS with the part number for a quote.
Which Recoil kits are now obsolete?
14 kits that were in the 2007 or 2013 catalogues are not listed in 2023. Most are vintage British Standard Cycle (BSC) and Brass 26 TPI threads, some UNEF sizes that were absorbed into range kits, and a few Harley Davidson and NPT specialty kits. See the Obsolete Kits table in this guide for the full list with suggested current alternatives.
How do I find the current RC code for an old Recoil part number?
Find the row in the relevant thread family table above that lists your old code in the 2007 or 2013 column. The 2023 Part No. column gives you the current RC code. If the row shows an em-dash in the 2023 column, the kit is obsolete — see the Obsolete Kits section for alternatives.
What's included in a standard Recoil thread repair kit?
A standard Recoil kit contains: an STI (Screw Thread Insert) tap sized for that thread; a pack of inserts (usually 5 or 10 depending on the kit); a manual install tool for that thread size; and a tang break tool to snap off the insert's installation tang once it's seated. Some 2023 kits are 'Inc.Drill' variants which also include the matching HSS drill bit in the case.
Do I need a special tap to install Recoil inserts?
Yes — Recoil inserts require an STI (Screw Thread Insert) tap, which cuts a slightly larger thread than a standard tap to accept the insert. You can't substitute a standard tap. AIMS stocks STI taps in Taper, Intermediate and Bottoming styles for both metric and UNC threads. The Intermediate style is the general-purpose choice for most repair work.
What drill bit size do I need for a stripped M6 thread?
For Recoil RC35068 (M6 x 1.0), the drill bit size is 6.3mm HSS — Sutton D180 0630 is the AIMS-matched part. The drill is included in the 2023 'Inc.Drill' variants. For other thread sizes, see the Replacement Parts tables in this guide. The drill must be HSS minimum — carbide is fine but high-speed steel is the standard and what Recoil specifies.
What's the difference between Free Running and Screw Locking Recoil inserts?
Free Running inserts (manufactured to NASM 33537, formerly MIL-S-7742) are smooth helical coils — the most common type and what's supplied in standard kits. Screw Locking inserts (NASM 8846, formerly MIL-I-8846) have one or more polygonal locking coils that grip the male thread, providing vibration resistance without needing thread-locking adhesive. Locking inserts are common in aerospace, defence and motorsport applications.
What's a Tanged vs Tangless Recoil insert?
Tanged inserts have a small driving tang at the bottom that the install tool engages with — once the insert is seated, you use a tang break tool to snap the tang off. Tangless inserts have no tang and are installed with a special tool that grips the insert internally. Tangless is preferred where the tang could fall into a sensitive cavity (engine internals, hydraulic galleries). Most standard Recoil kits use Tanged inserts; Tangless is supplied for specific applications on request.
Can I install Recoil inserts by hand or do I need a power tool?
Hand install is the standard method and what every Recoil kit is designed for — the manual install tool is included. Power install is possible for high-volume production work but isn't recommended for one-off repairs because over-torquing can damage the insert or the parent material. For workshop use, the manual install tool gives the right feedback to know when the insert is correctly seated.
What's the difference between standard and Inconel Recoil inserts?
Standard Recoil inserts are 304 stainless steel — fine for service temperatures up to around 425°C. Inconel X-750 inserts are specified for high-temperature applications above 425°C: exhaust manifolds, turbocharger housings, gas turbine bosses, industrial furnace fittings. The Inconel inserts cost significantly more and are usually special-order — contact AIMS for current availability and pricing.
Does AIMS stock the Recoil RC part I need?
AIMS keeps the most-used Recoil kits in stock at our Milperra warehouse: single-size kits in metric M3–M30, UNC 1/4–1", UNF 1/4–3/4", BSP 1/8–1/2", common BSW sizes, and all five spark plug kits. Range kits for metric, UNC, UNF, BSW and BSF are also in stock. Less common sizes, Inconel inserts, and Obsolete/POA kits are special-order with lead times of 2–4 weeks. Ring (02) 9773 0122 to confirm stock before ordering.
What if my Recoil kit is obsolete and there's no current equivalent?
About 14 kits in the catalogue are flagged as Obsolete — they appeared in the 2007 or 2013 catalogues but aren't in 2023. For most, a closely related current RC kit will work (a UNEF kit absorbed into a UNF range kit, for example, or a BSC thread that's now special order). AIMS can also source genuinely obsolete kits through our direct Recoil/Sutton Tools channel — lead times 2–4 weeks. Ring (02) 9773 0122 with the original code and we'll work out the best path.
Need a Recoil Kit or Replacement Part?
AIMS Industrial stocks the full current Recoil range and can special-order obsolete kits and Inconel inserts through our direct Recoil/Sutton Tools channel.
Browse the Recoil collection, see the matched Sutton Tools drill bits, or read more on the stripped threads guide for thread-repair fundamentals.
Phone: (02) 9773 0122 · Contact us via our contact page · Warehouse: 108 Ashford Ave, Milperra NSW 2214 (Mon–Fri 07:30–15:30 dispatch, 08:00–17:00 phone).
Cross-reference data compiled by AIMS Industrial from the Recoil 2007 catalogue, the 2013 Australian Price List, and the 2022/2023 catalogue. Validated against current Recoil/Sutton Tools stock. Last updated 18/06/26.
