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 6320-01-631-7828
NSN 4140-00-443-1210
NSN 5895-01-317-3986
NSN 5999-01-016-6949
NSN 5960-01-564-5044
NSN 6645-01-544-9475
NSN 6110-01-122-5928
NSN 5915-00-539-7673
NSN 5835-00-930-8500
NSN 5965-01-414-6414
NSN 5975-01-475-6656
NSN 5960-01-247-4560