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 6685-00-188-1991
NSN 2925-01-437-1128
NSN 5960-01-278-9394
NSN 6685-01-629-5906
NSN 6150-01-563-5233
NSN 5925-01-254-2578
NSN 6650-00-834-9062
NSN 5990-01-414-2778
NSN 5835-00-922-1263
NSN 4140-01-390-9552
NSN 5965-00-314-5303
NSN 5950-01-382-9337