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 6150-01-171-6789
NSN 6610-00-224-4252
NSN 2925-00-305-1235
NSN 6685-01-014-8246
NSN 5999-00-844-9166
NSN 5915-01-056-0860
NSN 5910-01-652-0645
NSN 5855-01-514-9857
NSN 5945-01-443-8849
NSN 5965-00-281-0319
NSN 5990-01-395-4194
NSN 5965-01-515-0589