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 4140-01-591-6540
NSN 5910-00-323-0607
NSN 5985-01-123-4804
NSN 5985-01-308-2265
NSN 5920-01-545-0661
NSN 5965-00-028-9646
NSN 6145-01-278-9675
NSN 5965-01-178-2367
NSN 5905-01-246-2749
NSN 6620-00-334-7249
NSN 5975-00-406-4753
NSN 5905-01-052-4427