CML Hardware Passage Door Knob Set in Antique Brass CML passage door knob sets are built with top quality materials and components such as the stainless steel knobs, durable finishes, and an all metal latch assembly. The charming Antique Brass finish is applied using a molecular bonding process that was developed for industrial exterior grade applications. This process ensures that it will not chip, fade or peel, and will continue to look as good as the day it was installed. Passage door knobs are plain with no lock and provide the basic function of opening and closing a door, but are made to the same standards and use the same high quality components as our locking door knob sets. Passage door knob sets are popular for kitchens, closets, garages, and exterior doors where locking is achieved by deadbolt. The removable latch plate gives you the option of not chiseling out a rectangle relief in the edge of new doors. The latch plate can be used for retrofitting older doors that have a relief or can be used on new doors if desired. Every CML Hardware door knob has an ANSI Grade 3 certification, which is a certified test to ensure the lock set functions flawlessly and shows no wear for more than 200,000 cycles. CML Hardware fully backs all of our products and we provide a complete 3-year warranty that includes durability of the finish and all mechanical function. A CML Hardware door knob offers everything you could want in door hardware providing durability style, smooth operation,strength and security.