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 5910-01-424-0225
NSN 5965-01-557-8059
NSN 6240-01-641-2666
NSN 6110-01-265-6017
NSN 6650-01-491-6733
NSN 6320-01-211-6578
NSN 5855-01-160-3802
NSN 2925-01-169-6196
NSN 4140-01-616-1918
NSN 5935-00-202-5248
NSN 6620-01-582-0090
NSN 7035-01-301-6325