Sutton T473 1/2 x 26 TPI Straight Flute Tap Intermediate - HSS - Bright - ISO 529
Available
The Sutton T473 is a straight flute tap (intermediate chamfer) for BSB threads, made from high speed steel (HSS) with a bright finish. This listing covers 4 sizes from 5/16 x 26 TPI to 1/2 x 26 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 intermediate chamfer (Form D, 3.5 to 5 threads on the lead), generally for through holes.
The tap is built to ISO 529: short machine tap construction.
Where this product is used
- Through and blind holes.
Design features
- High speed steel (HSS). Standard tool material for most common applications.
- Bright finish for general purpose applications.
- 4 flutes.
- Intermediate chamfer (Form D), generally for through holes.
- 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| T473 0794 | 5/16 x 26 TPI | 26 | 6.8 | 72 | 22 | 30 | 8 | 6.3 | 9 | 4 |
| T473 0953 | 3/8 x 26 TPI | 26 | 8.4 | 80 | 24 | 33 | 10 | 8 | 11 | 4 |
| T473 1111 | 7/16 x 26 TPI | 26 | 10 | 85 | 25 | - | 8 | 6.3 | 9 | 4 |
| T473 1270 | 1/2 x 26 TPI | 26 | 11.6 | 89 | 29 | - | 9 | 7.1 | 10 | 4 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T473 |
| Type | Straight flute tap |
| Thread series | BSB |
| Material | HSS |
| Finish | Bright |
| Chamfer | Intermediate (Form D) |
| Standard | ISO 529 |
| Flutes | 4 |
| Sizes in this listing | 4 sizes, 5/16 x 26 TPI to 1/2 x 26 TPI |
Related products
Related Sutton taps: T472 BSB Straight Flute Tap Taper - HSS - Bright - ISO 529, T474 BSB Straight Flute Tap Bottoming - HSS - Bright - ISO 529.
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Sutton T473 BSB Straight Flute Tap Intermediate - HSS - Bright - ISO 529: 1/2
SKU: A0015719 | Model: T4731270
Diameter (inch) 1/2. Features
The Sutton T473 is a straight flute tap (intermediate chamfer) for BSB threads, made from high speed steel (HSS) with a bright finish. This listing covers 4 sizes from 5/16 x 26 TPI to 1/2 x 26 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 intermediate chamfer (Form D, 3.5 to 5 threads on the lead), generally for through holes.
The tap is built to ISO 529: short machine tap construction.