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 5915-01-660-9660
NSN 5999-01-206-7128
NSN 6135-00-874-6566
NSN 6110-00-244-1354
NSN 6240-00-312-0636
NSN 5950-01-412-6905
NSN 6240-01-537-3218
NSN 6110-01-566-2630
NSN 6105-01-322-1985
NSN 7035-01-255-2332
NSN 6105-01-188-7292
NSN 5925-01-487-8190