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 5965-01-038-8081
NSN 5895-01-189-6167
NSN 6240-00-617-9599
NSN 6135-01-510-4663
NSN 5905-01-461-9603
NSN 6685-00-572-3694
NSN 5999-01-122-4611
NSN 6620-01-109-2764
NSN 6145-01-566-2732
NSN 6645-01-316-4900
NSN 5930-01-226-8559
NSN 6320-01-564-0893