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 5925-01-361-6279
NSN 5985-01-198-0897
NSN 6110-01-299-8870
NSN 6150-00-885-3471
NSN 4140-00-398-8544
NSN 5998-00-429-7765
NSN 5930-01-068-3641
NSN 5920-01-030-9535
NSN 6620-01-374-5787
NSN 6220-01-626-6426
NSN 5965-00-170-5254
NSN 6685-01-380-6365