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 6145-01-624-4123
NSN 5910-00-432-9371
NSN 6150-00-233-6356
NSN 6220-01-159-9080
NSN 6110-00-514-2639
NSN 6130-01-419-8946
NSN 6110-01-351-2026
NSN 6145-00-959-5897
NSN 5855-00-337-3679
NSN 6110-01-531-5132
NSN 4140-00-555-3856
NSN 5950-01-153-8267