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 6320-01-029-4220
NSN 2925-00-365-3289
NSN 5935-00-488-7280
NSN 2925-01-199-7394
NSN 6105-01-579-2321
NSN 5975-01-110-6836
NSN 5990-01-487-0871
NSN 6240-00-727-8573
NSN 6110-00-315-1207
NSN 6645-01-054-4423
NSN 5895-00-201-3742
NSN 4140-01-531-7375