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 6220-00-962-3226
NSN 5920-00-518-1793
NSN 6110-00-516-8645
NSN 5975-01-174-5592
NSN 6610-01-423-5889
NSN 5930-00-528-9728
NSN 6145-00-677-0140
NSN 5910-01-434-0975
NSN 5910-01-271-2140
NSN 5965-01-424-4922
NSN 5945-01-398-5526
NSN 6620-00-401-8489