Sutton T451 1-3/4 x 5 TPI Straight Flute Tap Taper - HSS - Bright - ISO 529
Available
The Sutton T451 is a straight flute tap (taper chamfer) for BSW threads, made from high speed steel (HSS) with a bright finish. This listing covers 20 sizes from 3/32 x 48 TPI to 2 x 4.5 TPI.
Straight flutes suit through or blind holes, but they hold only a small amount of chips and do not transport them axially, so deep holes are best avoided except in short chipping materials. The tap has a taper chamfer (Form A, 6 to 8 threads on the lead), for short through holes.
The thread tolerance is Z3 Medium. The tap is built to ISO 529: short machine tap construction.
Where this product is used
- General purpose use.
- Suitable for materials up to 1000 N/mm2.
- Through & blind holes.
- Suitable for both hand and machine operations.
- Depths up to approx. 1 x d1.
Design features
- High speed steel (HSS). Standard tool material for most common applications.
- Bright finish for general purpose applications.
- 3 to 4 flutes, depending on size.
- Taper chamfer (Form A), for short through holes.
- Thread tolerance Z3 Medium.
- ISO 529 construction, short machine tap construction.
Sizes
Dimensions are in millimetres. Item numbers are the Sutton catalogue numbers. If you are not sure which tapping drill to use, try our tap drill size selector.
| Item no. | Thread size | TPI | Tapping drill (mm) | l1 overall (mm) | l2 thread (mm) | l3 (mm) | d2 shank (mm) | sq square (mm) | l4 square length (mm) | Flutes |
|---|---|---|---|---|---|---|---|---|---|---|
| T451 0238 | 3/32 x 48 TPI | 48 | 1.85 | 45 | 10 | - | 2.8 | 2.24 | 5 | 3 |
| T451 0318 | 1/8 x 40 TPI | 40 | 2.55 | 48 | 15 | 15 | 3.15 | 2.5 | 5 | 3 |
| T451 0397 | 5/32 x 32 TPI | 32 | 3.2 | 53 | 17 | 17 | 4 | 3.15 | 6 | 3 |
| T451 0476 | 3/16 x 24 TPI | 24 | 3.7 | 58 | 16 | 22 | 5 | 4 | 7 | 3 |
| T451 0556 | 7/32 x 24 TPI | 24 | 4.5 | 62 | 17 | 23 | 5.6 | 4.5 | 7 | 3 |
| T451 0635 | 1/4 x 20 TPI | 20 | 5.1 | 66 | 19 | 25 | 6.3 | 5 | 8 | 3 |
| T451 0794 | 5/16 x 18 TPI | 18 | 6.5 | 72 | 22 | 30 | 8 | 6.3 | 9 | 4 |
| T451 0953 | 3/8 x 16 TPI | 16 | 7.9 | 80 | 24 | 33 | 10 | 8 | 11 | 4 |
| T451 1111 | 7/16 x 14 TPI | 14 | 9.3 | 85 | 25 | - | 8 | 6.3 | 9 | 4 |
| T451 1270 | 1/2 x 12 TPI | 12 | 10.5 | 89 | 29 | - | 9 | 7.1 | 10 | 4 |
| T451 1429 | 9/16 x 12 TPI | 12 | 12.1 | 95 | 30 | - | 11.2 | 9 | 12 | 4 |
| T451 1588 | 5/8 x 11 TPI | 11 | 13.5 | 102 | 32 | - | 12.5 | 10 | 13 | 4 |
| T451 1905 | 3/4 x 10 TPI | 10 | 16.25 | 112 | 37 | - | 14 | 11.2 | 14 | 4 |
| T451 2223 | 7/8 x 9 TPI | 9 | 19.25 | 118 | 38 | - | 16 | 12.5 | 16 | 4 |
| T451 2540 | 1 x 8 TPI | 8 | 22 | 130 | 45 | - | 18 | 14 | 18 | 4 |
| T451 2858 | 1-1/8 x 7 TPI | 7 | 24.75 | 138 | 48 | - | 20 | 16 | 20 | 4 |
| T451 3175 | 1-1/4 x 7 TPI | 7 | 28 | 151 | 51 | - | 22.4 | 18 | 22 | 4 |
| T451 3810 | 1-1/2 x 6 TPI | 6 | 33.5 | 170 | 60 | - | 28 | 22.4 | 26 | 4 |
| T451 4445 | 1-3/4 x 5 TPI | 5 | 39 | 187 | 67 | - | 31.5 | 25 | 28 | 4 |
| T451 5080 | 2 x 4.5 TPI | 4.5 | 44.5 | 200 | 70 | - | 35.5 | 28 | 31 | 4 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T451 |
| Type | Straight flute tap |
| Thread series | BSW |
| Material | HSS |
| Finish | Bright |
| Chamfer | Taper (Form A) |
| Thread tolerance | Z3 Medium |
| Standard | ISO 529 |
| Flutes | 3 to 4 |
| Sizes in this listing | 20 sizes, 3/32 x 48 TPI to 2 x 4.5 TPI |
Related products
Related Sutton taps: T452 BSW Straight Flute Tap Intermediate - HSS - Bright - ISO 529, T453 BSW Straight Flute Tap Bottoming - HSS - Bright - ISO 529, T456 BSW Straight Flute Tap Left Hand Bottoming - HSS - Bright - ISO 529.
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