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 6610-00-226-4710
NSN 6130-00-263-1827
NSN 6220-00-757-5115
NSN 5910-01-147-6084
NSN 5996-01-559-0284
NSN 5985-01-421-4559
NSN 5915-01-617-7044
NSN 5945-01-088-6526
NSN 6645-00-279-1777
NSN 5950-01-451-4538
NSN 6145-00-952-1735
NSN 6645-00-806-6961