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 5985-01-222-1690
NSN 6620-00-227-6776
NSN 6130-01-442-5435
NSN 5975-00-933-6489
NSN 5990-01-560-7032
NSN 5996-00-186-8709
NSN 6135-01-584-0941
NSN 5998-01-106-4198
NSN 5835-01-456-3922
NSN 6150-00-293-5293
NSN 5998-01-384-6204
NSN 6220-01-426-8824