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 5915-00-081-9939
NSN 5945-01-390-5679
NSN 5915-01-075-6797
NSN 5950-00-032-3639
NSN 5975-01-231-9306
NSN 5905-01-437-6521
NSN 4140-01-019-8980
NSN 5855-00-165-3093
NSN 5996-01-019-9923
NSN 2925-01-183-2897
NSN 6145-00-669-6795
NSN 2925-01-603-6379