An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.
NSN 4140-01-524-2597
NSN 5998-01-580-0933
NSN 6320-01-233-5798
NSN 5999-01-434-7471
NSN 5925-01-547-4304
NSN 6110-01-542-4823
NSN 2925-01-163-6716
NSN 5945-01-361-9116
NSN 5998-01-280-5020
NSN 6620-01-495-7446
NSN 2925-00-246-3077
NSN 6130-01-033-7731