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 5925-01-422-0431
NSN 6620-01-042-2046
NSN 5855-01-060-8521
NSN 5999-01-566-3680
NSN 5945-01-438-5273
NSN 6610-01-631-4355
NSN 5935-01-323-6399
NSN 6135-01-390-1841
NSN 6320-00-908-6841
NSN 6220-01-457-1209
NSN 5855-01-116-8905
NSN 6105-01-145-5405