Product Code- 6082 One Side Key And One Side Knob Body made from tough clear protective coated steel is stronger ; Locking Mechanism: Double Ideal Usage : Wooden doors , Main doors , Latch bolt and deadbolt made from brass are non-corrosive and have higher strength, Material : Steel Reinforeced receptacle provides extra resistance from the door being forced open Deadlocking function ensures that the latch bolt can not be pushed back to open the door from outside Hold back feature of latch bolt prevents inadvertent 'lock out' situations Package Contents: 1 ultra twinbolt assembly, 1 pin cylinder lock assembly and rose, 4 keys, 1 receptacle, 1 lock retainer plate, 6 screws (8mmx20mm), 4 Screws (8mmx45mm), 2 screws (M5x60mm) and 1 owner's manual with fitting instruction 5 years warranty against manufacturing defects from the proven date of purchase