Grandfather Clock Door Lock & Key Set NEW Brass Ridgeway Howard Miller Sligh NEW grandfather clock door lock and key set. This fits most modern grandfather clocks made by Ridgeway, Howard Miller, Sligh, and others. Fits up easily in most cases, but you may need to do some modifications to make it work. This depends on how the clock case was originally made. Lock measures approximately 1 3/4" long, 1" wide, and 3/8" deep. Comes with 2 mounting screws, key, key hole cover, and 2 brads.