All knobs and pulls come with two screw sizes - 1" 8/32 machine screws and 1 ¾" break-away screws with four break points (¾", 1", 1 ¼" and 1 ½") to accommodate all cabinet door sizes. Products should only be cleaned with a damp soft cloth, and soap, and wiped dry. Over-the-counter cleansers or chemicals should never be used, as they will corrode the finish and void the warranty. Mounting hardware included, including breakaway screws (0.75'', 1'', 1.25'', 1.5'' and 1.75") Center to center: 3"...