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 6645-01-088-5244
NSN 5999-01-462-1292
NSN 5910-00-488-6819
NSN 4140-00-869-1435
NSN 6685-01-367-2927
NSN 6320-01-132-2746
NSN 6110-01-232-4703
NSN 6650-00-491-7920
NSN 6130-01-158-1329
NSN 4140-01-376-0986
NSN 5935-01-474-7610
NSN 6110-01-359-4248