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 5925-01-649-4353
NSN 5945-01-031-5252
NSN 6620-00-186-8220
NSN 6650-00-202-4540
NSN 6220-01-630-9542
NSN 6620-01-156-4641
NSN 5960-00-955-0012
NSN 5855-00-791-5000
NSN 6320-01-021-6633
NSN 6650-01-423-8131
NSN 6645-01-314-2889
NSN 5950-01-630-2394