Wright Products keyed surface mounted patio door latch is reversible for right or left hand application on doors 1" to 1-1/4 thick. This latch requires 3-15/16" installation hole spacing and comes with a key lock for extra security. Ideal Application - This patio door latch is ideal for both right and left-handed patio doors 1 inch to 1 – 1/4 inch thick and comes with a keyed lock for additional security. No Lock Out - The inside latch features “No Lock Out” technology, eliminating the worry of accidentally locking yourself out Durability - Quality and durable construction ensures reliable everyday Use on your sliding patio door Ready To Install - All installation hardware is included and easily installs in 3-5/16 inch center to center hole spacing. Clean Subtle Look - High-quality finish allows it to blend in perfectly with your door and frame Color/Finish Family: Silver Hardware Finish: Pewter Type: Handleset Center to Center Length (Inches): 3.94 Handing: Reversible Handle Type: Surface mounted Latch Style: Flush latch Material: Zinc die-cast Package Contents: Keyed surface-mounted patio door latch and mounting hardware Package Quantity: 1 Warranty: 1-year CA Residents: Prop 65 Warning(s): Yes UNSPSC: 31161600