Heavy-Duty Spec Grade Single Receptacle Side Wire 15amp 250volts, • Auto-ground clip assures positive ground. , • Two drive screws anchor strap to back body and face where abrupt removal torque is greatest. , • Heavy-duty, corrosion-resistant zinc-plated steel strap for added strength. , • Backed-out tr-drive steel terminal screws. Internal screw-pressure-plate back and side wire capability. Two back wire holes for increased wiring flexibility. , • One-piece brass triple-wire power contacts for lasting retention.