The CRL 1NT401 Top Center-Hung Free Swing Pivot surface mounts easily on wood or metal substrates to work with Top Door Fittings, such as Catalog Numbers PH20A, PH21A, EUR420A, or any Top Pivot with a 19/32 inch (15 millimeter) pivot hole. Secured by two flat head screws from the bottom, or two machine screws from the top. Mounting screws...