Deadbolt w/Thumbturn Cylindrical Industrial Institutional Lockset Grade 1 Series 480 Lockset Finish Oil Rubbed Bronze Keyway Type 4A Key Type Different Standards ANSI A156.4 UL 10C and UBC 7-2 Positive Pressure UL/cUL Listed ADA Compliant No Lockset Fire Rating Not Rated Backset 2 3/4 in Ligature Resistant 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