Hubbell HBL303SS Boatside Inlets 30 Amp 125 Volt Heavy-Duty 316 stainless steel shore power inlet has easy to use push-button latch that makes unit watertight when fully engaged. Interior is heat resistant thermoset material and has threaded post terminals for ease of wiring with crimp terminals (ring or fork). Mounting holes are 2-3/8" on centers and match existing mounting patterns. Mounting screws and gasket included.