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 6110-01-361-0322
NSN 5975-00-501-3777
NSN 5855-00-408-2611
NSN 6220-00-561-7589
NSN 5999-01-297-0888
NSN 5935-00-123-6165
NSN 5950-01-440-8296
NSN 5975-00-167-0937
NSN 5990-01-110-8979
NSN 6150-01-571-7153
NSN 7035-01-337-1729
NSN 5855-01-319-9757