ASI ASICPICPC Waterproof Protection Cap for USB and RJ45 Panel Mount Connectors, Quick Lock, Use with ASICPICRJ45S and ASICPICUSB2.0AS Insert the <span class="a-text-bold">ASICPICRJ45S</span><span class="a-text-italic"> RJ45 Bulkhead Connector </span>through the backside of a 2 mm thick or thinner panel wall with a 20 mm diameter hole. Slide the ring of the <span class="a-text-bold">ASICPICPC </span><span class="a-text-italic">weatherproof cap </span>over the front section of the RJ45 connector. Screw the front mounting hexagonal tightening nut in place.