Privacy Function: Privacy door hardware features a locking mechanism on the interior for use on bedroom and bathroom doors where locking is needed. The exterior side features a small pin hole to unlock the door hardware from the outside. Features High quality, durable solid brass construction Suitable for right or left handed applications Manufactured in the United States Covered under a 5 year finish and 5 year mechanical warranty Specifications Backset: 2-3/8" Cross Bore: 2-1/8" Edge Bore: 1" Door Thickness: 1-3/8" to 1-3/4" Handing: Reversible Knob Diameter: 2-1/8" Material: Brass Projection: 2-15/16"