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 6620-00-106-9658
NSN 4140-00-596-4726
NSN 5935-01-076-3300
NSN 6130-01-113-8776
NSN 6130-01-240-8801
NSN 5910-01-580-0857
NSN 6320-00-433-2773
NSN 5910-01-267-7119
NSN 5990-01-272-4091
NSN 6110-01-339-8071
NSN 6145-00-826-6676
NSN 5920-01-412-1080