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 5950-01-353-5255
NSN 6220-01-195-6637
NSN 5965-01-535-0718
NSN 4140-00-696-4556
NSN 6610-01-512-2025
NSN 5960-00-525-1898
NSN 6685-01-512-8831
NSN 5895-01-102-8690
NSN 6150-01-645-7785
NSN 5835-01-360-2657
NSN 5965-00-111-2073
NSN 5925-01-216-5226