Deadbolt Lock, Cylindrical, Commercial, Lockset Grade 1, Series B660, Lockset Finish Satin Chrome, Keyway Type Everest 29 S, Key Type Keyed Different, Standards ANSI/BHMA A156.36-2020, ASTM E1886, ASTM E1996, ASTM E330, CAN/ULC-S104, UL and cUL Listed, ADA Compliant Yes, Lockset Fire Rating Not Rated, Backset 2 3/8 in, Ligature Resistant No, Cylinder Double, Faceplate Dimensions 1-1/8 in x 2-1/4 in, For Door Thickness 1 5/8 in to 2 in, Includes Hardware, Material Zinc, Number of Keys 2, Pins 6 The SCHLAGE(R) deadbolt features increased latch and bolt size for maximum kick resistance. Designed for heavy-duty traffic in government, education, hospital, and sports and leisure applications. Restricted C123 keyway. Double cylinder deadbolt includes 1" throw bolt and 6-pin solid brass cylinder.