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 4140-00-111-3166
NSN 2925-01-069-5324
NSN 5935-01-398-9114
NSN 6645-01-177-6021
NSN 5950-01-213-3243
NSN 5960-01-495-0859
NSN 5855-01-415-3987
NSN 5835-00-198-4936
NSN 5950-01-295-6608
NSN 6135-01-111-1495
NSN 5950-01-073-1250
NSN 5998-01-438-4881