Mechanical, Knob, Cylindrical, Lockset Function Passage, Lockset Grade 3, Biscuit Style, Polished Brass Lockset Finish, Keyway Type None, Key Type Not Keyed, Standards ANSI, No, Lockset Fire Rating Not Rated, Backset 2-3/8 in or 2-3/4 in, Ligature No, For Use With Closet Doors, Item Knob Lockset, Knob Material Steel, Location Type Commercial, Lockset Performance Strength Medium Duty, Number of Keys 0, Pins 0, Required Door Thickness 1-3/8 in to 1-3/4 in