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 6220-00-554-5937
NSN 6620-00-153-6291
NSN 5920-01-522-4870
NSN 6150-01-064-5169
NSN 5985-01-458-8306
NSN 5975-00-608-1186
NSN 6110-00-141-1966
NSN 6685-01-440-8749
NSN 6240-00-112-9008
NSN 6685-00-886-4105
NSN 5965-00-827-9680
NSN 5930-01-212-1696