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 6145-01-425-8644
NSN 5999-00-758-4587
NSN 5985-00-974-6360
NSN 5998-00-528-9032
NSN 5905-00-489-8355
NSN 6620-01-112-6440
NSN 6135-01-166-5042
NSN 6650-01-068-3997
NSN 5945-01-324-2862
NSN 5915-00-936-6033
NSN 6220-01-231-0995
NSN 6320-01-397-9995