Main properties
Material ID: 5974064
ISO Code: E0257/8
AvailabilityReplenish-ment
Availability in Distribution Centres
Americas Distribution Center(default): 0
Europe Distribution Center: 0
Description
Spiral point tap with chamfer form B with a 3.5-5xP second lead, for Unified National Coarse thread UNC 7/8" with 9 TPI and 3B class of fit with H4 pitch diameter limits, dimensions according to ANSI standard with 0.6970" shank and 0.5230" square drive, powder metallurgical HSS-E with bright finish for 2.5xD through hole threading in free machining and plain carbon steel and wrought or cast aluminium and copper or copper alloys
Product Feature
Product Detail
| Description | Value |
|---|---|
| Product name | E0257/8 |
| Ordering code ANSI | E0257/8 |
| EAN number | 7320760581230 |
| Clamping width - inch (WSC) | 0.523 inch |
| Connection diameter - inch (DCON MS) | 0.697 inch |
| Flute count (NOF) | 3 |
| Overall length - fractional inch (OAL) | 4.11/16 |
| Overall length - inch (OAL) | 4.6875 inch |
| Premachined hole diameter - imperial (PHD) | 49/64 |
| Premachined hole diameter - inch (PHD) | 0.7677 inch |
| Thread diameter size (TDZ) | 7/8 |
| Threading length - inch (THL) | 1.1614 inch |
| Threads per inch (TPI) | 9 |
| Tolerance limit | H4 |
| ISO | E0257/8 |
| ANSI | E0257/8 |
| Brand Name | Dormer Pramet |
| Net weight - grams | 224.2 |
| Gross weight - grams | 224.2 |
| EDP number | 0581230 |
Cutting Conditions
PP - Steel and cast steel (steels with alloy content ≤ 10% and a hardness of < 45HRC)
NN - Non-ferrous metals (metals including alloys without an appreciable amount of iron)