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 5990-01-201-1698
NSN 6110-01-381-1269
NSN 6135-00-405-1989
NSN 5998-00-005-0387
NSN 5950-01-387-5906
NSN 5920-00-827-1094
NSN 5998-01-519-9273
NSN 6685-00-159-6020
NSN 6645-01-032-5337
NSN 6610-01-245-8015
NSN 5855-01-169-9228
NSN 5998-01-494-8160