CML Privacy Door Knob Set in Matte Black. CML privacy 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 Matte Black 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. Privacy door knobs have a keyless lock for bedrooms, bathrooms, or anywhere extra privacy is wanted. The knob can be locked and unlocked on the inside by a convenient thumb turn knob. A slot on the outside knob can be used to unlock with a screwdriver or coin in case of emergency or accidental locking. 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 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 the durability of the finish and all mechanical function. A CML door knob offers everything you could want in door hardware providing durability, style, smooth operation,strength and security.