National Wood Patio Door Hardware with Key Locking Unit is a handle and latch set designed to fit patio doors measuring between 1 inch and 1-1/4 inches. It features a 3-15/16 inch hole spacing for easy installation and includes a key for the locking mechanism to enhance security. The hardware combines a durable aluminum finish with a classic wood handle, providing both functionality and a stylish look for your patio door. Model Number: