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 5998-00-564-2037
NSN 6685-00-419-0643
NSN 5895-00-558-6060
NSN 5925-00-239-2135
NSN 6135-01-534-3007
NSN 5975-00-166-9296
NSN 6650-01-521-2077
NSN 6220-01-032-5646
NSN 5895-01-330-2610
NSN 5925-01-570-4935
NSN 5985-00-169-3680
NSN 5925-00-217-6381