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 5990-00-219-7413
NSN 5999-00-317-6262
NSN 5990-01-045-7754
NSN 4140-01-065-9367
NSN 5915-01-575-7317
NSN 5920-01-470-0910
NSN 6620-00-197-5130
NSN 5999-01-091-2628
NSN 5975-01-439-8105
NSN 6105-00-188-2170
NSN 5855-01-169-9228
NSN 6645-01-633-1852