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 5985-01-340-3603
NSN 6650-01-399-8552
NSN 6610-01-072-7922
NSN 5915-00-518-0851
NSN 5925-01-421-4473
NSN 6320-00-004-9158
NSN 5985-01-487-8680
NSN 5975-01-073-0763
NSN 6110-01-600-0880
NSN 5910-01-560-4230
NSN 6145-01-101-6178
NSN 5985-01-503-9603