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 6620-01-337-8308
NSN 6650-01-129-8343
NSN 5935-01-228-1718
NSN 6130-00-466-1125
NSN 5855-01-103-8650
NSN 5975-01-164-6376
NSN 6685-01-023-1272
NSN 2925-01-384-4139
NSN 7035-00-108-4421
NSN 6650-01-139-9534
NSN 5895-01-535-1395
NSN 6135-01-079-7852