Wright Products V670 UNIVERSAL KNOB LATCH, ALUMINUM Aluminum finish Tulip knob latch For out swing wood or metal doors 3/4 inch to 1-1/8 inch thick Universal Aluminum Finish Tulip Knob Latch Designed for out swinging wood or metal doors 3/4-Inch to 1-1/8-Inch thick Installs in 1-1/2-Inch 1-3/4-Inch or 3-Inch hole spacing Features a bright, aluminum finish All installation hardware is included