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 6220-01-487-3904
NSN 6610-00-349-5118
NSN 5998-00-419-3662
NSN 5910-00-013-7604
NSN 6650-01-143-4586
NSN 6150-00-054-3518
NSN 5975-01-487-6941
NSN 4140-00-778-8790
NSN 5960-01-433-3928
NSN 5975-01-170-3480
NSN 6240-00-780-9956
NSN 6240-01-630-9613