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 6320-01-150-5378
NSN 6645-00-842-4653
NSN 5930-00-177-9383
NSN 5998-01-310-4941
NSN 6320-01-220-2264
NSN 5975-01-572-1233
NSN 5925-00-969-1450
NSN 5935-00-933-4675
NSN 5945-01-326-9872
NSN 6105-01-411-5970
NSN 5945-01-395-1208
NSN 6620-01-203-7761