EATON L630R 30-Amp 250-Volt Hart-Lock Industrial Grade Receptacle with Safety Grip Black and White Compact body design allows for adequate wire room in the wall box Heavy interior walls provide additional support to ensure contact retention Comes with a heavy duty mounting strap that is double riveted to the body for added strength One piece brass contacts provide excellent plug retention and electrical continuity with minimum heat rise Features multiple-head screws for flexibility in the installation and ease of use