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 6240-01-246-4258
NSN 6220-01-510-3927
NSN 5925-01-116-7032
NSN 5930-00-100-5736
NSN 6145-01-423-8470
NSN 5950-00-278-1201
NSN 6150-01-120-8487
NSN 5950-01-025-6732
NSN 6320-01-209-0952
NSN 5925-00-996-5183
NSN 5945-00-540-8178
NSN 5835-01-013-8797