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 6650-01-175-0841
NSN 4140-00-104-7323
NSN 6320-01-607-1491
NSN 5925-00-847-7725
NSN 5960-01-506-7039
NSN 6150-01-481-5163
NSN 6240-00-889-8442
NSN 5985-01-080-6545
NSN 6610-01-013-8922
NSN 5965-01-418-4369
NSN 5965-00-892-3850
NSN 5965-01-231-9125