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 4140-01-287-3263
NSN 6610-00-136-2662
NSN 5905-01-493-2892
NSN 6110-00-835-4585
NSN 6620-00-819-5046
NSN 6105-01-254-2722
NSN 7035-01-503-9281
NSN 5920-01-657-8480
NSN 6105-01-381-6892
NSN 6220-00-012-3620
NSN 6645-01-496-7144
NSN 6610-01-116-2527