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 5905-01-158-5549
NSN 5910-00-452-4268
NSN 5960-01-290-6919
NSN 5999-00-350-8440
NSN 5950-00-175-7108
NSN 4140-01-641-8440
NSN 5965-01-274-4003
NSN 5998-01-532-9219
NSN 6220-00-109-6672
NSN 5999-00-135-1451
NSN 5895-00-315-3540
NSN 5985-01-183-2127