Mechanical, Knob, Cylindrical, Lockset Function Entrance/Office, Lockset Grade 2, Ball Style, Satin Chrome Lockset Finish, Keyway Type AR1, Key Type Different, Standards ANSI A156.2, No, Lockset Fire Rating 3 hr, Backset 2-3/8 in, Ligature No, For Use With Wood or Metal Doors, Includes Mounting Hardware, Item Knob Lockset, Key Material Brass, Knob Material Wrought Brass, Location Type Commercial, Lockset Performance Strength Heavy Duty, Number of Keys 2, Pins 5