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 5945-01-172-6356
NSN 6220-01-592-1479
NSN 6620-01-257-6483
NSN 6110-00-575-3437
NSN 6110-01-243-7833
NSN 5855-01-222-1242
NSN 5855-01-543-8175
NSN 5950-00-263-3671
NSN 7035-01-012-2259
NSN 5998-00-967-0166
NSN 5920-01-343-2536
NSN 6130-00-862-5516