Solid Brass Plug Blades Are Firmly Embedded In Body. Resists Chemical Attack And Is Less Brittle In Extremely Low Temperatures. With Terminal Screw Clamps. Combination Slot/Phillips Head Mounting And Terminal Screws For Installation Flexibility (Slot/ Robertson Screws In Canada Where Available). Terminal Screws Backed Out, Ready For Wiring. Yellow Color. Meets All UL 498 Requirements.