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 4140-01-612-9411
NSN 5930-00-472-5047
NSN 4140-00-585-0645
NSN 6645-01-255-7024
NSN 5910-01-577-0389
NSN 4140-01-512-0744
NSN 5960-01-518-4440
NSN 6110-01-623-5215
NSN 6130-01-275-3546
NSN 6135-01-602-3042
NSN 6145-00-948-6412
NSN 5910-00-577-9390