Ace keyed universal knob latch is ideal for most screen doors providing traditional style with functionality. Replaces both 1-3/4 and 3 hole spacing patterns without the need to drill new holes. The exterior keyed knob and interior night lock feature enables you to secure your screen door anytime, day or night. * For out swinging wood or metal doors 3/4" - 1-1/8" thickReplaces 1-1/2", 1-3/4" and 3" hole spacingAll installation hardware included