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 6150-01-545-3031
NSN 6685-01-562-5603
NSN 5925-01-277-7963
NSN 6220-01-040-5653
NSN 5920-00-450-8063
NSN 5910-01-599-3961
NSN 6145-01-049-2360
NSN 5950-01-169-6461
NSN 6650-00-283-0978
NSN 5935-00-775-6759
NSN 4140-01-170-5395
NSN 6685-01-545-7910