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 4140-01-236-0112
NSN 5998-01-480-4187
NSN 5990-01-529-7307
NSN 7035-01-357-9246
NSN 5855-00-256-5562
NSN 6685-01-364-0661
NSN 6220-01-420-1856
NSN 5945-01-573-2655
NSN 6685-01-462-0141
NSN 5950-00-137-2301
NSN 5930-01-469-8217
NSN 5985-00-488-4276