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 6620-01-582-2046
NSN 2925-00-312-8568
NSN 4140-01-015-5137
NSN 5960-00-834-4045
NSN 6620-01-029-1881
NSN 6145-01-577-0338
NSN 6685-01-057-5619
NSN 5965-00-393-1294
NSN 5855-01-440-1768
NSN 6320-01-612-7035
NSN 6320-01-652-3806
NSN 6135-01-174-4863