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 6620-01-492-8470
NSN 5920-00-445-3585
NSN 6105-00-551-0726
NSN 6220-01-222-9554
NSN 6145-01-224-7228
NSN 5855-01-242-2415
NSN 6105-00-205-0655
NSN 5990-01-629-4694
NSN 6150-01-146-8212
NSN 5998-00-871-5015
NSN 6145-00-313-9429
NSN 5996-01-599-3117