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 5925-01-651-6310
NSN 6240-01-480-8996
NSN 6145-01-277-1173
NSN 5985-01-302-4577
NSN 6220-00-285-8104
NSN 6650-01-653-2556
NSN 5905-01-166-7918
NSN 5960-00-889-5470
NSN 6135-00-276-7625
NSN 4140-01-494-6121
NSN 6320-00-242-3300
NSN 5999-01-175-6767