Mechanical Knob Cylindrical Lockset Function Communicating Lockset Grade 1 Knob Style Satin Chrome Lockset Finish Keyway Type Coreless Standards ANSI ASTM BHMA UL Listed ADA Compliant No Lockset Fire Rating 3 hr Backset 2-3/4 in Ligature Resistant No For Use With Residential/Light Commercial Applications Includes Hardware Item Knob Lockset Location Type Commercial Educational Healthcare Industrial Institutional Lockset Performance Strength Heavy Duty Number of Keys 0