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 5999-01-119-6569
NSN 5925-01-484-6975
NSN 5920-00-581-9471
NSN 6240-00-299-9819
NSN 5925-00-521-0715
NSN 5925-00-081-9135
NSN 6610-01-396-5628
NSN 5996-01-618-8822
NSN 5920-00-669-8538
NSN 5960-00-705-5424
NSN 6620-01-550-3390
NSN 4140-01-123-8801