References
Dormer:EP301/4
Rubix:2019271
EAN:7320760138380
Technical specifications
| Threading | 1/4-28 unf |
|---|---|
| Threading diameter | 6.35 mm |
| Type | american through-bores |
Product details : DORMER EP301/4 SPIRAL POINT TAP 1/4 INCH X 28 5973829
HSS-E machine tap for UNF thread, uncoated, DIN 2184-1 form B, peel-cutting, 2.5xD, through holes for steel <1200 N/mm². Copper. Brass and bronze <200 HB. Aluminium and aluminium-magnesium alloys.
Applications
• Free-cutting steel, mild steel (<120 HB <400 N/mm²)
• Structural steel, case-hardening steel (<200 HB <700 N/mm²)
• Carbon steel (<250 HB <850 N/mm²)
• Alloy steel (<250 HB <850 N/mm²)
• Alloy steel, hardened and tempered steel (>250<350 HB >850<1200 N/mm²)
• Copper (<100 HB <350 N/mm²)
• Alpha-brass (<200 HB <700 N/mm²)
• Aluminium, aluminium-magnesium (unalloyed) (<100 HB <350 N/mm²)
• Aluminium alloyed with silicon 0.5% (<150 HB <500 N/mm²)
• Aluminium alloyed with silicon >0.5% <10% (<120 HB <400 N/mm²)
• Aluminium alloyed with silicon >10%, whisker-reinforced aluminium alloys, magnesium alloys (<120 HB <400 N/mm²)
• Structural steel, case-hardening steel (<200 HB <700 N/mm²)
• Carbon steel (<250 HB <850 N/mm²)
• Alloy steel (<250 HB <850 N/mm²)
• Alloy steel, hardened and tempered steel (>250<350 HB >850<1200 N/mm²)
• Copper (<100 HB <350 N/mm²)
• Alpha-brass (<200 HB <700 N/mm²)
• Aluminium, aluminium-magnesium (unalloyed) (<100 HB <350 N/mm²)
• Aluminium alloyed with silicon 0.5% (<150 HB <500 N/mm²)
• Aluminium alloyed with silicon >0.5% <10% (<120 HB <400 N/mm²)
• Aluminium alloyed with silicon >10%, whisker-reinforced aluminium alloys, magnesium alloys (<120 HB <400 N/mm²)
Technical specifications
Attributes
| Threading | 1/4-28 unf |
|---|---|
| Threading diameter | 6.35 mm |
| Type | american through-bores |
| With cooling spray | no |
| Direction of threading | right |
| Drilling diameter | 7 mm |
| Tail diameter | 5.5 mm |
| Square drive adapter | 7 mm |
| Thread depth | 15 mm |
| Coating | gold |
| Total length | 80 mm |
| Body material | hss-e |
| Threading | 1/4 |
| No. of threads per inch | 28 |
| Tolerance | h4 |
| Shank type | square |
Show UNSPSC/ECL@SS
£ 33.68 excl. VAT
/ Each
£ 40.42 incl. VAT
- Usually arrives within 14 working days