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 5950-01-612-7250
NSN 6240-00-416-6140
NSN 5925-01-144-4909
NSN 5990-01-408-6554
NSN 5999-00-529-0157
NSN 6620-00-829-9677
NSN 6150-01-200-8199
NSN 6685-01-108-5782
NSN 6220-01-158-2871
NSN 5998-01-646-4186
NSN 5855-01-208-1471
NSN 6650-01-204-7841