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 5996-01-136-5156
NSN 7035-01-477-4181
NSN 5990-00-359-9839
NSN 5855-01-432-0524
NSN 5945-01-604-3822
NSN 5925-01-634-0664
NSN 5960-01-104-3426
NSN 6610-00-252-3405
NSN 6650-01-012-8565
NSN 5915-01-009-1327
NSN 6685-01-426-8929
NSN 6110-00-504-2441