Mechanical, Lever, Cylindrical, Lockset Function Entrance, Lockset Grade 2, Style QTL250 Slate, Lockset Finish Satin Chrome, Keyway Type SC4, Key Type Different, Standards ANSI, UL Listed, Yes, Lockset Fire Rating 3 hr, Backset 2 3/4 in, Ligature No, Cylinder Core Type Interchangeable Core, Features Tubular Locks, For Use With Various Door Types, Handle Material Zinc, Includes Hardware, Item Lever Lockset, Key Material Nickel Silver