Round Power Socket/Gauge Mounting Bracket. This round power socket/meter mounting bracket is designed for the external mounting of round power sockets and gauges 1-1/8" in diameter. Fits all Sea-Dog round power sockets, gauges, and meters. Constructed of injection-molded nylon. Installs with two #8 FH fasteners (not included). Great Product. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.