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 6135-01-631-8462
NSN 6320-01-484-7734
NSN 6620-01-375-6741
NSN 5965-01-320-0260
NSN 6610-01-546-1309
NSN 6150-01-623-0184
NSN 6135-01-190-2628
NSN 5920-01-197-2570
NSN 5915-01-451-5712
NSN 5950-00-605-1925
NSN 5950-00-883-8331
NSN 5945-01-601-8671