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 5960-01-443-3067
NSN 6620-01-206-4896
NSN 4140-01-364-4975
NSN 6105-00-605-9709
NSN 5965-00-898-1356
NSN 5925-01-421-4473
NSN 5996-00-245-6273
NSN 5910-00-248-0858
NSN 6620-00-535-7667
NSN 6320-01-436-9228
NSN 5915-01-426-8862
NSN 5945-00-705-4976