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 6110-01-329-6021
NSN 5999-00-752-5321
NSN 5950-01-303-8805
NSN 6135-01-633-8502
NSN 5990-00-232-3965
NSN 6110-01-419-1968
NSN 5905-01-285-6621
NSN 6650-01-026-6572
NSN 6110-00-353-0139
NSN 6135-01-444-6824
NSN 5855-01-100-3272
NSN 5996-00-642-9832