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 5965-01-521-3224
NSN 5945-00-117-8980
NSN 6620-01-198-9448
NSN 6145-00-360-7760
NSN 5925-00-919-3054
NSN 5999-00-138-5001
NSN 5855-01-092-7755
NSN 6110-01-541-7645
NSN 6240-01-231-4184
NSN 6610-00-659-1603
NSN 5990-01-446-9118
NSN 5905-01-360-1441