Deadbolt w/Thumbturn, Cylindrical, Commercial, Lockset Grade 2, Series D, Lockset Finish Satin Chrome, Keyway Type C, Key Type Master, Standards ANSI A156.5, UL Fire Listed, No, Lockset Fire Rating Not Rated, Backset 2 3/8 in, Ligature No, Faceplate Dimensions 2-1/4 in x 1 in, For Use With Hollow Metal or Wood Doors and Frames, Includes Emergency Override Key, Material Steel, Number of Keys 1, Strike Dim. 2-3/8 x 1-1/8 in, Throw Length 1 in WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)