Amazon.com: Gate Latch, Thumb Latch Hardware, Gate Latch for Wooden Fence Heavy Duty, Self Locking Latches with 8 inch Handle, Gate Kit for Wooden Fence & Swing Outdoor Gate – Steel, Black
Standard Wood Gate Latch from OZCO OWT Hardware
SS & Aluminum Two-Sided Spring-Loaded Satin Black Finish Oval Gate Latch