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 5855-00-149-0766
NSN 4140-00-451-8374
NSN 5999-01-004-1500
NSN 6685-00-276-1308
NSN 6620-01-343-6671
NSN 5920-01-254-8409
NSN 5950-01-619-6471
NSN 5910-01-137-3349
NSN 5855-01-504-4750
NSN 6135-00-738-5571
NSN 5925-00-265-6248
NSN 6650-01-211-2673