3.5 mm Audio Jack for Panel-Mounting This panel-mount jack is perfect for creating a permanent connection point for a wide variety of portable audio sources. The jack accepts a 3.5 mm analog stereo plug and provides output via a pair of female RCA jacks. This product is designed to be mounted to any flat surface up to 1-inch thick. Mounting requires a 0.75-inch hole and is tightened into place with a plastic wing-nut on the opposite side of the mounting surface. A labeled rubber cover with a tight-fitting seal provides protection against the elements. Overall cable length, 20 in (0.51 m).