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 4140-01-381-0099
NSN 5935-00-243-7971
NSN 5835-01-488-6678
NSN 5895-00-338-8728
NSN 5960-01-354-0762
NSN 5975-01-234-6747
NSN 5905-01-485-7604
NSN 5945-01-644-5099
NSN 6145-01-496-6606
NSN 6135-01-377-3862
NSN 6320-00-681-1324
NSN 5998-01-438-4934