References
Dormer:E2291/4
Rubix:1073717
EAN:7320760086315
Technical specifications
| Threading | 1/4-28 unf |
|---|---|
| Threading diameter | 6.35 mm |
| Type | american blind bores and through-bores |
Product details : DORMER HSS TAP 1/4 E2291/4
HSS-E machine tap for UNF thread uncoated DIN 371 form C straight flutes 1.5xD blind and through holes for general use in steel <1200 N/mm². Cast iron. Copper and brass. Aluminium alloys and duroplastics.
MACHINE TAP 1/4' UNF E229 STRAIGHT 2B HSCO
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 (>250<350 HB >850<1200 N/mm²)
• Cast iron lamellar (<150 HB >500 N/mm²)
• Cast iron lamellar (>150<300 HB >500<1000 N/mm²)
• Nodular cast iron / malleable cast iron (<200 HB <700 N/mm²)
• Beta-brass / bronze (<200 HB <700 N/mm²)
• Alpha-brass (<200 HB <700 N/mm²)
• Aluminium alloy silicon 0.5% (<150 HB <500 N/mm²)
• Aluminium alloy silicon > 0.5% < 10% (<120 HB <400 N/mm²)
• Duroplastics
• 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 (>250<350 HB >850<1200 N/mm²)
• Cast iron lamellar (<150 HB >500 N/mm²)
• Cast iron lamellar (>150<300 HB >500<1000 N/mm²)
• Nodular cast iron / malleable cast iron (<200 HB <700 N/mm²)
• Beta-brass / bronze (<200 HB <700 N/mm²)
• Alpha-brass (<200 HB <700 N/mm²)
• Aluminium alloy silicon 0.5% (<150 HB <500 N/mm²)
• Aluminium alloy silicon > 0.5% < 10% (<120 HB <400 N/mm²)
• Duroplastics
Technical specifications
Attributes
| Threading | 1/4-28 unf |
|---|---|
| Threading diameter | 6.35 mm |
| Type | american blind bores and through-bores |
| With cooling spray | no |
| Direction of threading | right |
| Drilling diameter | 5.5 mm |
| Tail diameter | 5.5 mm |
| Square drive adapter | 7 mm |
| Thread depth | 15 mm |
| Coating | bright |
| Total length | 80 mm |
| Body material | hss-e / pm |
| Threading | 1/4-28 unf |
| No. of threads per inch | 28 |
| Tolerance | 2b |
| Shank type | cylindrical shank with square |
Show UNSPSC/ECL@SS
£ 21.65 excl. VAT
/ Each
£ 25.98 incl. VAT
- Usually arrives within 14 working days