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 6145-01-353-2563
NSN 5960-01-143-1202
NSN 6150-01-049-3437
NSN 6240-01-247-4805
NSN 5990-01-129-7701
NSN 6135-01-309-8414
NSN 5905-01-220-5643
NSN 6150-01-554-9394
NSN 5945-00-796-4597
NSN 5925-00-130-2586
NSN 5855-01-233-2767
NSN 6145-00-791-9820