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 5945-01-349-1551
NSN 4140-00-027-5150
NSN 5855-01-083-9053
NSN 6150-00-398-6527
NSN 2925-00-081-3547
NSN 6650-00-754-2276
NSN 2925-00-824-2186
NSN 6685-01-064-2539
NSN 5905-01-386-3180
NSN 5975-01-442-8767
NSN 5925-01-343-0831
NSN 5915-00-180-1378