Deadbolt Less Cylinder, Cylindrical, Commercial, Lockset Grade 1, Series QDB1, Lockset Finish Satin Chrome, Keyway Type Not Applicable, Key Type Not Applicable, Standards ANSI A156.5, No, Lockset Fire Rating Not Rated, Backset 1 1/8 in, Ligature No, Cylinder Double SFIC, Faceplate Dimensions 1-1/8 in x 2-1/4 in, For Door Thickness 1 5/8 in to 2 in, Includes Hardware, Material Brass, Number of Keys Not Applicable, Pins Not Applicable, Security Type Heavy-Duty