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 6620-01-437-3146
NSN 5975-01-276-9300
NSN 5985-01-438-0130
NSN 6145-01-453-4406
NSN 5996-01-035-2042
NSN 6145-01-543-7851
NSN 6650-01-394-6124
NSN 5999-01-221-1740
NSN 6150-01-084-8312
NSN 5965-01-029-5222
NSN 5998-01-329-4119
NSN 5950-01-573-6434