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 5999-01-299-3040
NSN 6145-00-635-9957
NSN 6320-01-228-2380
NSN 5965-01-553-4970
NSN 7035-00-703-3535
NSN 6620-01-633-8443
NSN 6240-01-444-1519
NSN 5905-00-517-8047
NSN 6240-01-224-7656
NSN 5990-01-633-9503
NSN 4140-01-290-4026
NSN 5915-00-263-2175