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 5975-01-507-7556
NSN 6145-01-258-5828
NSN 6110-01-519-2636
NSN 5905-01-437-4626
NSN 5930-00-188-2175
NSN 5895-01-178-0523
NSN 5998-00-925-2992
NSN 5895-01-282-6790
NSN 5975-01-479-8292
NSN 6620-01-152-0936
NSN 5910-00-113-0351
NSN 5950-01-591-8151