Heavy Duty. Mounting stem: 1-1/4" L x 3/8" dia. 2 Position: Off - On. Chrome plated brass face nut, washer and back-up nut. Chrome plated plastic knob.Stainless steel springs.,Switches with spade connections make installation quick and easy. Chrome plated brass face nut, washer and back-up nut. Chrome plated brass knob. Stainless steel springs.