Wouldn't You Prefer That Your Door, Gate or Fence Always Remained Locked Without Using Keys Every Time? Protected spaces make for secure families and productive working environments. Double-keyed cylinder deadbolt lock alternative with concealed interior screws & self-locking latch. Includes weldable steel gate lock boxes with locksmith-tested lock hardware. All include their respective steel welding gate lock boxes for exterior use. Toledo Locks offers customers superior quality locks made under strict manufacturing specifications to ensure outstanding performance. A fusion of the latest technology with traditional craftsmanship backed by a lifetime warranty. These locks are perfect for designers and homeowners looking for an alternative that provides distinguished quality, security, and beautiful designer finishes. Product packaging may be opened for custom keying service when several are purchased in the same order. ATTENTION: If you are not handy with lock hardware components, please consult with a certified locksmith. Revise your local building codes, as they may limit the use of double-keyed locks on main entrance doors in residential settings to ensure fire hazard safety.