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 5905-01-438-1329
NSN 5965-01-056-7225
NSN 5930-01-212-3373
NSN 5975-00-319-6018
NSN 4140-00-228-3661
NSN 6130-00-169-9090
NSN 5915-00-155-7626
NSN 5910-00-247-7225
NSN 5920-00-916-1009
NSN 5999-00-440-7942
NSN 6620-01-386-5914
NSN 5999-00-140-5365