Deadbolt w/Thumbturn, Cylindrical, Industrial, Institutional, Lockset Grade 1, Series 480, Lockset Finish Satin Chrome, Keyway Type 4A, Key Type Different, Standards ANSI A156.4, UL 10C and UBC 7-2 Positive Pressure, UL/cUL Listed, No, Lockset Fire Rating Not Rated, Backset 2 3/4 in, Ligature No, Cylinder Single, Faceplate Dimensions 1-1/8 in x 2-1/4 in, For Door Thickness 1 3/8 in to 1 3/4 in, Includes (2) Nickel Silver keys, Material Brass/Steel, Number of Keys 2 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)