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 5990-01-064-1013
NSN 5925-01-112-3629
NSN 6145-01-571-7928
NSN 5985-00-516-8773
NSN 6240-00-901-1082
NSN 6220-01-539-5242
NSN 5915-01-244-6772
NSN 5910-01-004-7602
NSN 6685-01-463-6936
NSN 6135-00-221-4720
NSN 5998-00-280-7270
NSN 7035-00-188-6674