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 5990-00-461-5372
NSN 5965-01-073-1014
NSN 5855-01-006-1827
NSN 5910-01-269-9469
NSN 6240-01-350-1395
NSN 6135-00-983-9187
NSN 6105-01-415-4135
NSN 6320-00-994-0179
NSN 6220-00-061-8076
NSN 5998-00-468-8794
NSN 4140-01-567-7605
NSN 5920-00-644-3285