The 18E is a standard mounting bracket designed to securely mount Ohmite 200, 210, and 270 series resistors. Made from plated steel, this bracket fits inside the resistor core and is held in place by spring tension. It is specifically intended for use with high-power resistors rated for 175 watts and 225 watts. This hardware accommodates a maximum mounting screw size of 10, ensuring a robust and reliable installation.