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 6685-01-492-2039
NSN 6610-01-228-8883
NSN 5925-01-015-7873
NSN 2925-00-553-8799
NSN 6320-01-512-2031
NSN 5905-00-944-3884
NSN 6130-01-347-5726
NSN 6650-01-576-8520
NSN 6110-01-422-0873
NSN 6610-01-604-1744
NSN 5985-00-299-3510
NSN 5960-00-834-8248