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 6150-01-062-2162
NSN 5935-01-079-9106
NSN 5945-01-129-9746
NSN 6610-01-381-3181
NSN 7035-00-946-2642
NSN 5950-01-100-3263
NSN 5990-00-366-0112
NSN 5855-00-631-4565
NSN 5975-01-534-0737
NSN 5998-01-381-3741
NSN 5920-01-073-8713
NSN 5990-00-257-2637