Sutton T430 1/2 x 13 TPI Machine Nut Tap Long Shank Bottoming - HSS - Bright - BS 949
Available
The Sutton T430 is a machine nut tap (bottoming chamfer) for UNC threads, made from high speed steel (HSS) with a bright finish. This listing covers 4 sizes from 1/4 x 20 TPI to 1/2 x 13 TPI.
The tap has a bottoming chamfer (Form E, 1.5 to 2 threads on the lead), for blind holes with very short thread run-out.
The tap is built to BS 949.
Where this product is used
- Suited to long reach applications.
- Suitable for materials up to 1000 N/mm2.
- Through holes.
- Depths up to approx. 2 x d1.
Design features
- High speed steel (HSS). Standard tool material for most common applications.
- Bright finish for general purpose applications.
- 4 flutes.
- Bottoming chamfer (Form E), for blind holes with very short thread run-out.
- BS 949 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) | d2 shank (mm) | sq square (mm) | l4 square length (mm) | Flutes | Limit |
|---|---|---|---|---|---|---|---|---|---|---|
| T430 0635 | 1/4 x 20 TPI | 20 | 5.1 | 110 | 38 | 4.5 | 3.55 | 6 | 4 | GH4 |
| T430 0794 | 5/16 x 18 TPI | 18 | 6.6 | 125 | 43 | 6 | 4.5 | 7 | 4 | GH5 |
| T430 0953 | 3/8 x 16 TPI | 16 | 8 | 140 | 48 | 7 | 5.6 | 8 | 4 | GH5 |
| T430 1270 | 1/2 x 13 TPI | 13 | 10.8 | 180 | 59 | 9.5 | 7.5 | 10 | 4 | GH6 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T430 |
| Type | Machine nut tap |
| Thread series | UNC |
| Material | HSS |
| Finish | Bright |
| Chamfer | Bottoming (Form E) |
| Standard | BS 949 |
| Flutes | 4 |
| Sizes in this listing | 4 sizes, 1/4 x 20 TPI to 1/2 x 13 TPI |
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Sutton T430 UNC Machine Nut Tap Long Shank Bottoming - HSS - Bright - BS 949: 13
SKU: A0015291 | Model: T4301270
This is the tpi 13 option of the Sutton T430 UNC Machine Nut Tap Long Shank Bottoming - HSS - Bright - BS 949. Key details for this option: thread length 59mm, tapping drill size 10.8mm, square size 7.5mm, shank diameter 9.5mm, overall length 180mm.
Features
The Sutton T430 is a machine nut tap (bottoming chamfer) for UNC threads, made from high speed steel (HSS) with a bright finish. This listing covers 4 sizes from 1/4 x 20 TPI to 1/2 x 13 TPI.
The tap has a bottoming chamfer (Form E, 1.5 to 2 threads on the lead), for blind holes with very short thread run-out.
The tap is built to BS 949.