Rockwell hardness on stud end
A headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends on which the nominal diameter of one threaded section is greater than the other. The unthreaded section must have more than one diameter, none of which may be larger than the maximum major diameter of the larger thread. It may be thread relieved. Excludes items with tapered threads.
NSN 6150-00-959-9958
NSN 5905-01-353-5330
NSN 5985-01-627-9689
NSN 6220-01-632-8217
NSN 6150-01-592-1887
NSN 6150-01-336-1653
NSN 6650-00-446-8787
NSN 2925-00-288-1394
NSN 6145-00-212-0422
NSN 6150-00-157-5988
NSN 5915-00-145-6181
NSN 5998-00-226-0387