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 6220-01-616-4492
NSN 5910-00-626-9714
NSN 5895-01-152-1947
NSN 6610-01-202-7404
NSN 6150-00-055-7601
NSN 6645-01-554-2871
NSN 6135-01-382-1980
NSN 5925-01-593-5431
NSN 5998-00-057-4589
NSN 5996-00-518-0460
NSN 6320-00-089-9426
NSN 2925-01-514-6301