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 5998-01-501-0623
NSN 4140-01-395-8430
NSN 5999-01-642-4392
NSN 5999-01-352-5110
NSN 2925-01-471-3365
NSN 5905-01-422-6494
NSN 6105-00-324-1030
NSN 6620-01-542-5569
NSN 6620-00-779-5859
NSN 5985-00-151-4538
NSN 5895-01-313-8895
NSN 5855-01-285-3483