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 5975-01-432-8964
NSN 5855-01-542-9059
NSN 6240-01-435-5486
NSN 5950-01-460-2573
NSN 5920-01-326-6143
NSN 5985-01-597-9069
NSN 5996-00-487-0755
NSN 6320-01-334-9840
NSN 5990-00-827-4891
NSN 5985-01-425-1753
NSN 5930-01-056-8779
NSN 6645-01-553-8500