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 6110-01-378-1714
NSN 6620-01-362-5432
NSN 5990-00-288-1820
NSN 5855-00-149-0766
NSN 6150-01-601-9389
NSN 6150-01-077-3225
NSN 6685-01-285-3159
NSN 6620-01-246-7133
NSN 6650-00-952-2754
NSN 5945-01-648-2231
NSN 6240-00-225-7359
NSN 5950-01-354-8451