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 6650-01-213-1231
NSN 5935-01-463-7807
NSN 5998-01-367-2272
NSN 6240-01-294-2039
NSN 6610-01-431-8575
NSN 6135-01-433-2062
NSN 6685-00-331-1611
NSN 5895-01-501-6932
NSN 6150-00-210-4131
NSN 6130-01-008-6461
NSN 5960-01-066-4771
NSN 6110-00-862-6407