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 6320-00-139-1090
NSN 6135-01-628-2903
NSN 5895-01-236-3852
NSN 4140-01-400-3610
NSN 4140-01-379-2954
NSN 5835-00-334-6556
NSN 5998-01-246-2717
NSN 6105-00-189-0515
NSN 5935-01-349-1995
NSN 5960-01-091-1549
NSN 6150-00-474-7158
NSN 5920-01-519-8106