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 6610-01-381-3181
NSN 5999-01-278-5264
NSN 5945-01-421-1785
NSN 6650-01-079-9838
NSN 5920-01-236-6780
NSN 5935-00-950-2848
NSN 6320-00-149-7570
NSN 4140-01-104-0743
NSN 5930-01-557-1623
NSN 5895-01-283-8901
NSN 5945-01-091-7974
NSN 5935-01-003-0821