Straight blade plug with nylon housing provides impact and chemical resistance. Rugged two-piece cord grip provides more uniform cord retention. Internal dust shield keeps terminals free of contaminants. Tri-drive assembly screws. All 3-wire terminals located on the same plane, allows for quick wire termination from any angle. Heavy-duty brass alloy blades and contacts, resist heat rise, provide excellent conductivity. Cord-grip screws recessed to protect installer against screwdriver head slippage.