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 6320-01-132-2746
NSN 5975-01-558-8301
NSN 6610-01-205-4589
NSN 6220-00-211-6276
NSN 5975-00-035-6524
NSN 5935-01-273-1006
NSN 6610-00-405-2159
NSN 6110-00-566-2113
NSN 5920-01-309-2682
NSN 4140-00-228-3661
NSN 6240-00-204-9355
NSN 5855-01-067-8841