Deadbolt, Mortise, Commercial, Lockset Grade 2, Series QDB2, Lockset Finish Satin Aluminum, Keyway Type Kwikset KW1, Key Type Not Keyed, Standards ANSI A156.5, No, Lockset Fire Rating Not Rated, Backset 1 1/8 in, Ligature No, Cylinder Single, Faceplate Dimensions 1 in x 2-1/4 in, For Door Thickness 1 3/8 in to 1 3/4 in, For Use With Standard 1 5/32 in Dia Mortise Cylinder with an MS Cam, Material Aluminum, Security Type Medium-Duty, Strike Dim. 1 in x 2-1/4 in