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Dormer E0257/8 0581230 UNC Machine Tap Spiral Point 7/8 inch x 9
MODEL E0257/8
$84.10 Each
Prices are subject to change
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Returnable: Yes
California Prop 65 warningBasic Standard
ANSI
EDP number
581230
Flute count (NOF)
3
Material
HSS-E-PM
Material application
N - Non-ferrous metals, P - Steel and cast steel
MID number
5974064
Ordering code ANSI
E0257/8
Overall length - millimeter (OAL)
0.697
Premachined hole diameter - millimeter (PHD)
19.5
Thread diameter - millimeter (TD)
49/64
Usable length (ULDR)
2.5
Spiral point tap with chamfer form B with a 3.5-5xP plug 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.
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