References
Dormer:E5707/8X20NO3
Rubix:1068884
EAN:7320760200698
Technical specifications
| Threading | 7/8-20 un |
|---|---|
| Threading diameter | 22.225 mm |
| Type | american blind bores and through-bores |
Product details : DOR HSS TAP 7/8X20NO3
HSS machine tap for UN threads uncoated ISO 529 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. Duroplastics and fibre-reinforced plastics.
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)
• Nodular cast iron / malleable cast iron (>200<300 HB >700<1000 N/mm²)
• Copper (<100 HB <350 N/mm²)
• Beta-brass / bronze (<200 HB <700 N/mm²)
• Alpha-brass (<200 HB <700 N/mm²)
• Extra-strong bronze (<470 HB <1500 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)
• Duroplastics
• Reinforced plastics
• 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)
• Nodular cast iron / malleable cast iron (>200<300 HB >700<1000 N/mm²)
• Copper (<100 HB <350 N/mm²)
• Beta-brass / bronze (<200 HB <700 N/mm²)
• Alpha-brass (<200 HB <700 N/mm²)
• Extra-strong bronze (<470 HB <1500 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)
• Duroplastics
• Reinforced plastics
Technical specifications
Attributes
| Threading | 7/8-20 un |
|---|---|
| Threading diameter | 22.225 mm |
| Type | american blind bores and through-bores |
| With cooling spray | no |
| Direction of threading | right |
| Drilling diameter | 21 mm |
| Tail diameter | 12.5 mm |
| Square drive adapter | 16 mm |
| Thread depth | 30 mm |
| Coating | bright |
| Total length | 118 mm |
| Body material | hss |
| Threading | 7/8-20 un |
| No. of threads per inch | 20 |
| Tolerance | 2b |
| Shank type | straight flute (straight flute) |
Show UNSPSC/ECL@SS
£ 114.67 excl. VAT
/ Each
£ 137.60 incl. VAT
- Usually arrives within 14 working days