Sutton T450 1-1/8 x 8 TPI Straight Flute Tap Bottoming - HSS - Bright - ISO 529
Available
The Sutton T450 is a straight flute tap (bottoming chamfer) for 8UN threads, made from high speed steel (HSS) with a bright finish. This listing covers 8 sizes from 1-1/8 x 8 TPI to 2 x 8 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 bottoming chamfer (Form E, 1.5 to 2 threads on the lead), for blind holes with very short thread run-out.
The thread tolerance is GH8/2B. 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.
- 4 flutes.
- Bottoming chamfer (Form E), for blind holes with very short thread run-out.
- Thread tolerance GH8/2B.
- 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) | d2 shank (mm) | sq square (mm) | l4 square length (mm) | Flutes |
|---|---|---|---|---|---|---|---|---|---|
| T450 2858 | 1-1/8 x 8 TPI | 8 | 25.5 | 138 | 48 | 20 | 16 | 20 | 4 |
| T450 3175 | 1-1/4 x 8 TPI | 8 | 28.5 | 151 | 51 | 22.4 | 18 | 22 | 4 |
| T450 3493 | 1-3/8 x 8 TPI | 8 | 31.75 | 162 | 57 | 25 | 20 | 24 | 4 |
| T450 3810 | 1-1/2 x 8 TPI | 8 | 35 | 170 | 60 | 28 | 22.4 | 26 | 4 |
| T450 4128 | 1-5/8 x 8 TPI | 8 | 38 | 170 | 60 | 28 | 22.4 | 26 | 4 |
| T450 4445 | 1-3/4 x 8 TPI | 8 | 41.5 | 187 | 67 | 31.5 | 25 | 28 | 4 |
| T450 4763 | 1-7/8 x 8 TPI | 8 | 44.5 | 187 | 67 | 31.5 | 25 | 28 | 4 |
| T450 5080 | 2 x 8 TPI | 8 | 47.5 | 200 | 70 | 35.5 | 28 | 31 | 4 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T450 |
| Type | Straight flute tap |
| Thread series | 8UN |
| Material | HSS |
| Finish | Bright |
| Chamfer | Bottoming (Form E) |
| Thread tolerance | GH8/2B |
| Standard | ISO 529 |
| Flutes | 4 |
| Sizes in this listing | 8 sizes, 1-1/8 x 8 TPI to 2 x 8 TPI |
Related products
Related Sutton taps: T448 8UN Straight Flute Tap Taper - HSS - Bright - ISO 529, T449 8UN Straight Flute Tap Intermediate - HSS - Bright - ISO 529.
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Sutton T450 8UN Straight Flute Tap Bottoming - HSS - Bright - ISO 529: 1 1/8
SKU: A0015479 | Model: T4502858
Diameter (inch) 1 1/8. Features
The Sutton T450 is a straight flute tap (bottoming chamfer) for 8UN threads, made from high speed steel (HSS) with a bright finish. This listing covers 8 sizes from 1-1/8 x 8 TPI to 2 x 8 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 bottoming chamfer (Form E, 1.5 to 2 threads on the lead), for blind holes with very short thread run-out.
The thread tolerance is GH8/2B. The tap is built to ISO 529: short machine tap construction.