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 6220-01-397-2536
NSN 5910-01-290-7720
NSN 5996-01-442-8751
NSN 6135-01-092-4734
NSN 5998-01-269-4599
NSN 6130-01-123-4126
NSN 5930-01-208-4093
NSN 5855-00-256-5562
NSN 5915-00-403-3282
NSN 5910-01-117-8260
NSN 5920-01-300-1510
NSN 6110-01-205-7617