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 2925-01-139-5144
NSN 6110-01-591-0423
NSN 5996-01-495-0763
NSN 6145-00-949-8008
NSN 5920-01-579-1285
NSN 5930-01-360-6009
NSN 5855-01-657-7657
NSN 6610-00-910-0664
NSN 5910-01-301-0110
NSN 6135-01-391-6515
NSN 6150-00-995-8748
NSN 6220-00-708-9909