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 5920-00-868-7651
NSN 4140-01-210-9909
NSN 5998-01-245-7437
NSN 6610-00-127-7013
NSN 7035-01-597-4180
NSN 5910-01-481-6333
NSN 5855-00-198-3197
NSN 6220-01-054-1208
NSN 4140-01-281-1615
NSN 5895-01-287-3705
NSN 5895-00-127-6713
NSN 6135-01-472-9011