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 6150-01-335-0679
NSN 6220-01-433-9502
NSN 5855-01-264-8599
NSN 5985-01-395-9311
NSN 5960-01-266-9520
NSN 5905-01-521-9790
NSN 5998-00-018-7684
NSN 5996-01-633-7979
NSN 6645-01-447-0020
NSN 5960-01-142-8170
NSN 5975-00-295-2497
NSN 5920-01-020-4090