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 5990-01-487-0871
NSN 5930-00-161-5979
NSN 5915-00-103-7939
NSN 6320-01-552-8721
NSN 6320-01-316-2190
NSN 5998-01-265-4643
NSN 6145-01-027-2055
NSN 5945-01-525-7779
NSN 5935-01-630-2640
NSN 5985-01-197-6999
NSN 5960-01-472-9562
NSN 6645-01-457-0158