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 4140-01-583-9725
NSN 6685-00-830-8117
NSN 5975-00-099-9312
NSN 5935-01-113-1369
NSN 6610-01-207-0045
NSN 6110-01-642-5848
NSN 6320-01-267-0586
NSN 6620-01-270-8364
NSN 5910-00-035-5534
NSN 5930-01-335-8314
NSN 6610-01-542-8825
NSN 6610-01-641-2187