Lockey 2200-KO Mechanical Keyless Surface Mount Deadbolt with Key OverrideThe Lockey 2200 KO Mechanical Keyless Surface Mount Deadbolt with Key Override is a Lockey keyless deadbolt with verified product details for door hardware applications supported by the product specifications. 2200 KO Mechanical Keyless Surface Mount Deadbolt with Key Override Brand: Lockey Function: Keyless Deadbolt Product Type: Keyless Entry Deadbolts Collection: 2200 Series Material: Zinc Plated Steel Backset: Adjustable 2 3 8" or 2 3 4" Door