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 2925-01-303-5266
NSN 6320-00-110-8005
NSN 6240-01-406-5345
NSN 6240-01-620-2450
NSN 6220-01-437-9085
NSN 6610-00-371-5953
NSN 5835-01-003-8076
NSN 4140-00-518-2744
NSN 6110-01-642-7947
NSN 5975-00-488-8691
NSN 5998-00-051-9605
NSN 5905-01-366-7865