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 6620-01-041-8567
NSN 6685-00-984-8150
NSN 5910-01-306-3994
NSN 6240-01-542-3823
NSN 5998-00-009-9787
NSN 5925-01-608-5897
NSN 6620-01-037-4631
NSN 5855-00-160-2286
NSN 6240-00-907-3371
NSN 5915-00-753-7553
NSN 7035-01-022-5763
NSN 5965-01-607-7684