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 6105-00-775-6072
NSN 5965-00-823-8623
NSN 6150-00-242-6241
NSN 5999-01-334-9194
NSN 6320-01-252-2307
NSN 6650-00-161-4122
NSN 5999-01-241-5976
NSN 6135-00-100-8890
NSN 6135-01-547-3983
NSN 5985-01-284-1556
NSN 5895-01-124-7929
NSN 5930-01-172-4301