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 5925-01-139-3151
NSN 5975-00-850-6809
NSN 5999-00-279-4029
NSN 6650-01-542-7154
NSN 6110-00-919-4637
NSN 5990-00-879-0476
NSN 5930-01-265-8122
NSN 5945-01-493-5989
NSN 5920-01-367-2236
NSN 6150-01-200-2172
NSN 6650-01-340-3058
NSN 5950-01-168-3824