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 6620-01-305-0412
NSN 5999-00-633-7592
NSN 6620-01-203-3526
NSN 2925-01-443-5929
NSN 5950-01-273-0762
NSN 5996-00-842-2023
NSN 6610-00-483-9810
NSN 5985-00-567-6492
NSN 6240-01-354-9457
NSN 6610-00-848-4764
NSN 5905-01-411-4775
NSN 5945-00-848-8439