The erosion resistant alloy construction and straightforward installation process ( includes all hardware and instructions) make it a long lasting upgrade for any standard door setup Designed for exterior doors, apartments, or offices, its internal locking mechanism and operated external access deliver peace in congested areas Ideal for homeowners, landlords, or renters seeking stable access control, this provides keyed exterior entry and internal rotation for enhanced residential or commercial security Crafted from strong alloy, this single sided lockset adjustable backsets ( 2 3 / 8 ” or 2 3 / 4 ”) and fits standard doors ( 1 3 / 8 ” to 1 3 / 4 ” thick), ensuring compatibility and robust defense Enhances your home security with the deadlock featuring technology, allowing quick rekeying in seconds and installation with just a screwdriver for convenience, Manufacturer: Oxxggkao