What's the Toyota Matrix license plate screw size?

The Toyota Matrix license plate screw size for the rear screws is an M6 X20mm screw. This is a very common screw size for license plates and You should be able to find it at most auto parts stores as well as hardware stores. If You are looking to install a front license plate on Your vehicle then You will need to use a self tapping screw that is an M6 as well. This is how You will be able to drill into Your front bumper to attach the plate properly. You can also use a mounting bracket that attaches to the tow eye in the front bumper of Your vehicle if You do not want to drill the front bumper out.