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 5985-01-187-5049
NSN 6150-01-555-7646
NSN 6110-00-004-1455
NSN 5895-01-155-4656
NSN 6220-00-200-7888
NSN 6620-00-299-2530
NSN 5925-01-042-2543
NSN 7035-01-061-3781
NSN 5990-01-565-2226
NSN 5915-01-446-7238
NSN 5996-01-250-2814
NSN 5905-00-087-2256