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 4140-01-034-1135
NSN 5996-00-563-1073
NSN 5945-01-656-4475
NSN 5905-00-542-9624
NSN 6685-00-177-2563
NSN 5945-01-602-1753
NSN 6105-01-427-8439
NSN 5905-01-290-4756
NSN 5999-00-978-2373
NSN 6145-00-056-2046
NSN 5920-00-492-5516
NSN 6220-00-113-5855