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 4140-00-723-4107
NSN 5930-01-112-7478
NSN 5998-00-784-4114
NSN 4140-00-167-4712
NSN 6135-01-351-2690
NSN 6240-01-453-3199
NSN 5930-01-321-8129
NSN 5999-01-594-5709
NSN 6650-00-488-5285
NSN 5895-01-345-8165
NSN 6145-00-945-0615
NSN 4140-00-816-8820