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 5910-00-758-6156
NSN 6685-01-557-9726
NSN 5935-01-650-6548
NSN 6130-01-318-4321
NSN 6620-01-421-3917
NSN 6130-01-431-4555
NSN 6645-01-390-3442
NSN 4140-00-242-6465
NSN 6610-01-460-4864
NSN 7035-01-661-1519
NSN 5960-00-136-2505
NSN 6105-00-689-7799