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 5950-01-102-2173
NSN 6240-00-677-0305
NSN 6620-01-654-9436
NSN 6110-00-263-6664
NSN 6685-01-437-6292
NSN 2925-00-596-9775
NSN 5975-01-243-6831
NSN 6685-01-441-1846
NSN 2925-01-191-9668
NSN 6610-01-099-9710
NSN 6150-00-255-8706
NSN 6620-01-087-2354