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 6650-00-944-8925
NSN 5895-01-403-2793
NSN 5835-00-397-7697
NSN 6620-01-600-0479
NSN 5965-01-633-8849
NSN 6130-00-151-5001
NSN 5925-01-220-5497
NSN 4140-00-486-6292
NSN 6320-01-180-9908
NSN 5998-01-490-5453
NSN 4140-00-215-8593
NSN 5895-01-065-2336