Spiral point tap with chamfer form B with a 3.5-5xP second lead, for Unified National Fine thread UNF 5/16" with 24 TPI and 3B class of fit with H3 pitch diameter limits, dimensions according to ANSI standard with 0.3180" shank and 0.2380" 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
Applications:
P - Steel and cast steel(steels with alloy content ? 10% and a hardness of < 45HRC) - Primary use
N - Non-ferrous metals(metals including alloys without an appreciable amount of iron) - Primary use
For additional details please check the Manufacturer's site:
Prop65 Warning:
WARNING: Cancer - www.P65Warnings.ca.gov