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Thread Inserts - AIMS Industrial Supplies

Thread Inserts

Buy Thread Inserts Online in Australia

Recoil Thread Insert Selection — Quick Reference

Recoil wire thread inserts (also called Helicoil-style inserts) repair stripped + damaged threads in aluminium + soft metal substrates + reinforce threads for repeated assembly. Coil-wound stainless steel inserts installed into oversize tapped hole — produce new internal thread typically STRONGER than original substrate thread.

Insert Type Best For Thread Range
Tanged Free-Running (Standard) General workshop thread repair + reinforcement M2 – M24 metric, 4-40 to 1" UNC/UNF
Tanged Free-Running (Stainless 304) Standard corrosion service Per range
Tangless Free-Running Aerospace + critical engineering — no tang break-off contamination Per range
Tangless Inserts (Production) Higher-volume install — no break-off step Production speed
Keysert (Self-Locking with Internal Keys) Heavier-load applications — solid bushing with keys M5 – M16+
Recoil Install Kit (per Size) Includes drill + tap + insertion tool + tang break tool One size complete
Recoil Master Kit (Multi-Size) Workshop range — covers common thread sizes Multi-size workshop kit
Replacement Inserts (Refill Packs) Top up after install kit insert usage Per size

Install steps: 1) drill out damaged thread to oversize spec, 2) tap oversize with matched STI tap (provided in kit), 3) install insert with insertion tool, 4) break off tang (tanged) or leave (tangless). Critical: Use the EXACT tap that matches the insert — STI (Screw Thread Insert) taps are larger than standard taps; standard tap = insert won't fit + loose thread. Brand: Recoil. Companion: all threaded inserts, threading, extraction tools, cobalt drill bits.

Thread Inserts — Wire Thread Repair from Recoil

AIMS Industrial stocks Recoil thread inserts covering metric, UNC and UNF thread forms in 304 stainless steel — including tanged free-running, keyserts and left-hand variants.

Whether you're repairing stripped threads or installing permanent thread reinforcement in aluminium, cast iron or soft alloys, Recoil inserts deliver a stronger thread than the parent material. Available in individual packs and multi-pack bulk quantities to suit workshop and production needs.

Types of Thread Inserts We Stock

  • Recoil Metric 304 Stainless Steel Inserts: Wire thread inserts for metric threads from M4 to M12+ available in tanged and tang-free (free-running) variants — ideal for general engineering and maintenance repair.
  • Recoil UNC & UNF Imperial Inserts: Unified National Coarse and Fine thread inserts in 304 stainless steel for imperial fastener applications in automotive and aerospace-aligned repairs. Available in 5-packs and bulk packs.
  • Left-Hand Thread Inserts: Recoil left-hand wire thread inserts (e.g. 9/16-20 LH) for applications where conventional right-hand thread engagement would loosen under load — commonly used in rotating assemblies.
  • Keysert Light — Metric Stainless Steel: Recoil Keysert inserts provide a positive locking thread repair for high-stress applications, featuring keys that grip into the parent material to prevent rotation and pullout.
  • Bulk Packs & Assortments: Individual inserts available in 5-packs through to 42-packs (e.g. M4 x 0.7 x 2D). Suitable for workshops wanting a ready supply of the most common thread sizes without repeated ordering.

Why Engineers Choose Recoil Thread Inserts

  • Stronger than Parent Material: Recoil wire thread inserts create a 304 stainless steel internal thread that exceeds the tensile strength of the host material — especially important in aluminium housings and castings.
  • Corrosion-Resistant Construction: 304 stainless steel construction makes Recoil inserts suitable for washdown environments, marine applications and anywhere moisture and chemicals are present.
  • Free-Running & Locking Options: Choose free-running inserts for standard fastener re-assembly or locking variants (STI/Keysert) where vibration resistance is critical — applicable across mining, transport and heavy industry.
  • Precision Thread Form: Recoil inserts comply with ISO and Unified thread standards — ensuring correct fit with standard metric and imperial fasteners without the need for oversize replacement bolts.

Australian Business, Local Supply: As a proudly Australian business since 1988, we stock locally and work with trusted local Australian manufacturers and distributors to ensure fast, reliable supply.

Expert Support: Need help selecting the right pneumatic tool for your application? Contact our team or request a quote for application-specific advice.

Also see our ranges of Drill Bits and Power Tool Accessories for complementary products.

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