Using this 1/4-inch screw with D-ring is a breeze. First, find the appropriate spot on your tripod, camera, or photo light where the screw can be inserted. Then, simply thread the screw into the hole. The D-ring is there to help you tighten the screw easily. You can flip it up and use your hand to adjust it until it's secure. When it comes to maintenance, keep it clean and dry. Avoid using it in wet or extremely dirty environments as this could damage the screw. If it gets dirty, you can use a dry cloth to wipe it down. Make sure to store it in a safe place when not in use to prevent it from getting lost or damaged.