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 6240-00-908-0377
NSN 6150-01-603-2593
NSN 5935-01-268-1853
NSN 5910-01-323-5341
NSN 5895-00-153-2595
NSN 5925-00-517-8512
NSN 5835-00-170-5238
NSN 6620-00-904-1596
NSN 5910-01-281-9820
NSN 7035-01-538-1658
NSN 2925-00-118-4887
NSN 6130-00-155-8526