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 5965-00-324-2428
NSN 5975-01-430-2285
NSN 6240-01-381-6815
NSN 5990-00-110-1153
NSN 6610-01-100-3662
NSN 5920-00-071-9241
NSN 6105-01-438-6955
NSN 5950-00-281-2389
NSN 5835-01-408-7576
NSN 5996-01-568-4832
NSN 6150-01-534-3379
NSN 4140-00-269-3189