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 6150-01-510-2180
NSN 6135-01-633-8502
NSN 5835-01-632-6627
NSN 6645-00-754-4108
NSN 5935-01-367-8682
NSN 6620-00-811-7614
NSN 6150-01-293-4311
NSN 5960-01-381-2478
NSN 5975-01-468-1859
NSN 6685-01-605-3617
NSN 5990-01-408-6554
NSN 6650-01-633-9147