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 6650-01-154-1870
NSN 5999-00-116-8983
NSN 6110-01-651-1521
NSN 5835-01-416-5764
NSN 2925-00-764-0167
NSN 5835-01-046-9615
NSN 4140-01-123-9149
NSN 6320-01-607-0347
NSN 6105-01-440-0328
NSN 6685-01-154-4139
NSN 6110-00-491-8502
NSN 5990-01-388-0252