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 5960-01-068-9609
NSN 5999-01-631-8286
NSN 5999-01-364-7215
NSN 5960-00-239-9008
NSN 6645-01-528-8424
NSN 6130-00-895-6966
NSN 6145-00-838-9874
NSN 5998-01-221-8048
NSN 6645-01-334-0782
NSN 6110-01-062-7532
NSN 6110-00-283-3630
NSN 6610-01-219-3168