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 5910-01-343-0040
NSN 6650-01-068-2258
NSN 6130-01-200-3600
NSN 5835-01-618-7621
NSN 5855-01-300-0983
NSN 6130-00-940-1883
NSN 6610-01-323-7783
NSN 5925-01-390-0216
NSN 6645-00-916-5615
NSN 6145-01-442-3161
NSN 5950-01-037-9758
NSN 5985-01-591-6698