National stock number 5305-01-659-1321 is available in the following condition(s).
Note: Availability of this item was last checked on 03/22/2021 and may no longer be available. Submit the form below to check current price and availability.
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.