References
Dormer:EP201/4
Rubix:2019252
EAN:7320760138083
Technical specifications
| Threading | 1/4-20 unc |
|---|---|
| Threading diameter | 6.35 mm |
| Type | american through-bores |
Product details : DORMER EP201/4 SPIRAL POINT TAP 1/4 INCH X 20 5973720
HSS-E machine tap for UNC thread uncoated DIN 2184-1 form B chip breaker 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 Magnesium unalloyed (<100 HB <350 N/mm²)
• Aluminium alloyed silicon 0.5% (<150 HB <500 N/mm²)
• Aluminium alloyed silicon > 0.5% < 10% (<120 HB <400 N/mm²)
• Aluminium alloyed 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 Magnesium unalloyed (<100 HB <350 N/mm²)
• Aluminium alloyed silicon 0.5% (<150 HB <500 N/mm²)
• Aluminium alloyed silicon > 0.5% < 10% (<120 HB <400 N/mm²)
• Aluminium alloyed silicon >10% whisker-reinforced aluminium alloys magnesium alloys (<120 HB <400 N/mm²)
Technical specifications
Attributes
| Threading | 1/4-20 unc |
|---|---|
| Threading diameter | 6.35 mm |
| Type | american through-bores |
| With cooling spray | no |
| Drilling diameter | 5.1 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 | 20 |
| Tolerance | 2b |
| Shank type | square drive |
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£ 30.63 excl. VAT
/ Each
£ 36.76 incl. VAT
- Usually arrives within 14 working days