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 6650-01-440-9215
NSN 5950-00-528-4423
NSN 5835-01-319-4636
NSN 6135-00-455-2425
NSN 6135-00-488-4478
NSN 6320-01-082-2970
NSN 5905-01-013-8589
NSN 5920-01-267-6086
NSN 6145-01-325-8505
NSN 5975-00-665-3644
NSN 5990-01-187-8050
NSN 6145-01-343-6712