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 6240-00-120-0140
NSN 5999-01-010-3494
NSN 5910-01-417-3160
NSN 6220-01-366-6747
NSN 6620-01-305-7924
NSN 6150-01-468-6102
NSN 6320-01-445-5893
NSN 6130-00-287-9332
NSN 5835-01-424-4577
NSN 5998-00-931-8413
NSN 6145-00-357-5010
NSN 6685-00-726-0199