OptiMate Cable O-20L: Weatherproof front panel mount – SAE power socket.. Easy mount: Drill the hole, fit the socket, tighten the nut.. Front panel mount. Only front access needed to fasten.. Connector fits a Ø1″/25mm drilled hole.. Industry standard durability. Built to last!. Perfect for use in the harshest environments, Low temperature use -40°C/-40°F. Remains Flexible!.