Wright Products - Universal Knob Door Latch for Screen and Storm Doors, Aluminum Grey From the Manufacturer Hampton Products Inc. are known for their excellent door fixtures. These fixtures will hold up over time and deliver the best results. Universal Aluminum Finish Tulip Knob Latch. Designed for out swinging wood or metal doors 3/4" to 1-1/8" thick. Installs in 1-1/2" 1-3/4" or 3" hole spacing. Requires a 7/8 in. backset from door jamb. Features a bright, aluminum finish. All installation hardware is included.