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 5920-01-422-1445
NSN 5950-01-038-7661
NSN 6620-01-042-2046
NSN 4140-01-496-7653
NSN 7035-01-127-0147
NSN 6320-01-631-7828
NSN 5990-01-227-0660
NSN 2925-01-338-7126
NSN 5960-01-076-9930
NSN 5835-00-402-8387
NSN 5965-01-411-9933
NSN 6150-01-441-4740