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 5975-01-504-1751
NSN 5855-01-169-9228
NSN 5925-01-341-3159
NSN 5920-01-263-9590
NSN 6145-00-493-4073
NSN 6650-01-388-3127
NSN 5915-01-282-9847
NSN 6610-01-441-1581
NSN 5999-01-070-3057
NSN 5960-01-191-1982
NSN 5915-00-426-6139
NSN 6135-01-136-8306