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 6645-00-900-5830
NSN 6150-01-439-2230
NSN 5925-01-045-3805
NSN 5835-00-148-9719
NSN 6610-01-632-8561
NSN 2925-00-891-9289
NSN 6645-01-387-7209
NSN 6105-00-383-7231
NSN 6320-01-054-3046
NSN 5985-00-065-0733
NSN 6645-01-199-7553
NSN 5925-00-553-2500