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 6320-01-643-0850
NSN 5935-00-328-7342
NSN 5999-01-599-5222
NSN 6150-01-203-1030
NSN 6220-01-206-4410
NSN 5855-01-302-9778
NSN 6110-01-519-9131
NSN 6220-01-623-1883
NSN 5835-01-274-1035
NSN 6135-01-604-8739
NSN 6150-00-983-3176
NSN 6240-00-764-1580