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 6130-01-400-6123
NSN 5999-01-224-6587
NSN 6220-01-294-8973
NSN 5925-00-591-2792
NSN 5930-01-163-5556
NSN 5895-01-290-6472
NSN 5925-01-015-5116
NSN 5925-00-140-2359
NSN 5935-00-881-0774
NSN 5905-00-687-2121
NSN 5930-00-903-3854
NSN 6685-01-566-1341