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 6620-01-611-7907
NSN 5855-01-650-1653
NSN 5996-01-158-5197
NSN 6105-00-821-2478
NSN 5915-00-025-1763
NSN 6610-00-929-4754
NSN 5920-01-154-6109
NSN 6145-00-635-9429
NSN 6240-00-183-0570
NSN 6610-01-026-1701
NSN 5895-00-850-8838
NSN 5895-01-037-6772