A lock box is a steel housing welded to the gate frame that conceals and protects a deadbolt or other locking mechanism. The lock box creates a neat, finished appearance for gate locks that would otherwise have exposed hardware, and it provides protection against tampering with the lock cylinder.
Many gate lock cylinders use standard residential keyways and can be rekeyed by a locksmith to match existing door locks, eliminating the need for a separate key. Confirm with the lock manufacturer whether the specific cylinder is rekeyable and compatible with your existing key system.
Lock boxes are fabricated from steel and should be finished with the same rust-inhibiting primer and topcoat as the gate frame to protect against weathering. Lock cylinders and internal mechanism components are typically brass or stainless steel for corrosion resistance.