Sutton T290 M4 x 0.7 Straight Flute Tap GG - HSSE - Plasma Nitride + Steam Oxide - DIN 371
Available
The Sutton T290 is a straight flute tap (GG designation) for metric coarse (M) threads, made from premium grade high speed steel (HSSE) with a plasma nitride (Ni) and blue steam-oxide finish. This listing covers 6 sizes from M3 x 0.5 to M10 x 1.5.
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 GG designation is for cast iron, with straight flutes and a low rake angle. The chamfer is Form C (2.5 x P), generally for blind holes.
The thread tolerance is 6HX. The tap is built to DIN 371: reinforced shank with square drive.
Where this product is used
- For use in grey cast iron (GG).
- Through & blind holes.
- Depths up to 3 x d1.
Design features
- Premium grade high speed steel (HSSE). The vanadium grade gives high wear resistance and toughness for most tapping applications.
- Plasma nitride (Ni) and blue steam-oxide finish to increase surface hardness and carry lubricant better.
- 4 flutes.
- Form C chamfer, 2.5 x P.
- Thread tolerance 6HX.
- The GG designation is for cast iron, with straight flutes and a low rake angle.
- DIN 371 construction, reinforced shank with square drive.
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 | Pitch (mm) | Tapping drill (mm) | l1 overall (mm) | l2 thread (mm) | l3 (mm) | d2 shank (mm) | sq square (mm) | l4 square length (mm) | Flutes |
|---|---|---|---|---|---|---|---|---|---|---|
| T290 0300 | M3 x 0.5 | 0.5 | 2.5 | 56 | 11 | 18 | 3.5 | 2.7 | 6 | 4 |
| T290 0400 | M4 x 0.7 | 0.7 | 3.3 | 63 | 13 | 21 | 4.5 | 3.4 | 6 | 4 |
| T290 0500 | M5 x 0.8 | 0.8 | 4.2 | 70 | 16 | 25 | 6 | 4.9 | 8 | 4 |
| T290 0600 | M6 x 1 | 1 | 5 | 80 | 19 | 30 | 6 | 4.9 | 8 | 4 |
| T290 0800 | M8 x 1.25 | 1.25 | 6.8 | 90 | 22 | 35 | 8 | 6.2 | 9 | 4 |
| T290 1000 | M10 x 1.5 | 1.5 | 8.5 | 100 | 24 | 39 | 10 | 8 | 11 | 4 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T290 |
| Type | Straight flute tap |
| Thread series | Metric coarse (M) |
| Material | HSSE |
| Finish | Plasma Nitride + Steam Oxide |
| Designation | GG |
| Chamfer | Form C / 2.5 x P |
| Thread tolerance | 6HX |
| Standard | DIN 371 |
| Flutes | 4 |
| Sizes in this listing | 6 sizes, M3 x 0.5 to M10 x 1.5 |
Related products
Related Sutton taps: T291 Metric Coarse Straight Flute Tap GG - HSSE - Plasma Nitride + Steam Oxide - DIN 376, T292 Metric Coarse Straight Flute Tap GG - HSSE - TiCN - DIN 371, T287 Metric Coarse Straight Flute Tap - HSSE - Bright - DIN 376, T293 Metric Coarse Straight Flute Tap GG - HSSE - TiCN - DIN 376, T286 Metric Coarse Straight Flute Tap - HSSE - Bright - DIN 371.
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M3
Model Number: T2900300
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M4
Model Number: T2900400
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M5
Model Number: T2900500
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M6
Model Number: T2900600
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M8
Model Number: T2900800
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M10
Model Number: T2901000
