Mechanical Knob Cylindrical Lockset Function Entrance/Office Lockset Grade 1 CRXK Knob Style Satin Stainless Steel Lockset Finish Keyway Type Schlage SC4 Key Type Different Standards ANSI A156.2 BAA UL 10C Positive Pressure ADA Compliant No Lockset Fire Rating 3 hr Backset 2-3/4 in Ligature Resistant Yes For Use With Wood Steel and Fiberglass Doors Includes Mounting Screws Item Ligature Resistant Lever Lock Key Material Brass Lockset Performance Strength Heavy Duty