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 5855-01-519-3814
NSN 6320-01-525-4789
NSN 6220-01-643-5601
NSN 5985-01-373-6492
NSN 5935-00-245-8789
NSN 6130-01-516-2690
NSN 5855-00-631-4565
NSN 6650-00-007-4372
NSN 5975-01-078-1309
NSN 5998-00-233-6215
NSN 5905-00-186-8555
NSN 7035-00-104-7613