Rockwell hardness on cap nut end only
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. All or part of the unthreaded section is greater than the maximum major diameter of the largest threaded section. It may be thread relieved. Excludes items with tapered threads. See also stud, locked in.
NSN 5950-01-431-4198
NSN 5975-00-886-6332
NSN 6610-01-243-8506
NSN 5935-01-382-4981
NSN 5910-01-261-2226
NSN 5910-01-530-7940
NSN 5835-00-165-3069
NSN 5855-00-481-0019
NSN 5998-01-451-0650
NSN 5895-01-558-1075
NSN 6110-01-542-0762
NSN 5965-01-127-3890