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 5998-01-356-9230
NSN 4140-01-152-1214
NSN 6110-01-558-7334
NSN 6620-01-367-2597
NSN 5945-01-607-7708
NSN 5930-01-468-6206
NSN 5855-01-383-6860
NSN 5930-01-026-1821
NSN 6320-01-506-9439
NSN 7035-01-247-6256
NSN 6145-01-053-0207
NSN 6135-00-856-1343