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 6145-00-809-4279
NSN 5975-01-004-2009
NSN 5999-01-068-3639
NSN 6130-00-988-3257
NSN 6145-01-241-0965
NSN 6645-01-230-6252
NSN 4140-01-621-9263
NSN 5915-00-552-1779
NSN 6220-00-479-9171
NSN 4140-00-844-9436
NSN 7035-00-205-1932
NSN 4140-00-925-5188