To ensure the security of your trailer door during transit, start by aligning the latch with the door frame. Once properly positioned, secure the latch with screws to ensure it stays firmly in place. After the latch is secured, insert the locking pin to complete the setup. This process assure that your trailer door remains tightly closed, providing you with peace of mind while on the road. The locking pin, with a diameter of 6.3 millimeters and a length of 56 millimeters, is designed to offer robust security and durability, making it an essential component for any trailer owner. Features -Color:Silver -Material:Stainless steel -Size:6.50X5.00X1.10cm/2.55X1.97X0.43in - safety pins: available in various sizes, these safety pins are designed to fit a wide range of rv trailers, ensuring versatility and compatibility -Enhanced stability: the unique square and round pin design provides practical stability, keeping your trailer components securely in place -Antiloosening lock pins: fixed lock pins are designed to prevent any loosening or loss of parts, ensuring a secure connection at all times -Quick installation: the trailer latch and fixed buckle system allow for fast and easy installation and removal, making maintenance a breeze -durable metal: constructed from durable metal materials, these components are built to withstand the rigors of regular use, ensuring list: 3 pcs x 1pcs x RV security pin