Set of four Stainless steel machine screws M5 (5mm thread). Suitable for the rear of Mercedes Benz only. All other manufacturers use the M6 size. These screws won’t rust and leave ugly brown stains on your number plate or car. Machine screws are not pointed on the end as they are for holes that have a metal thread inside. If the screws need to make their own new hole then use the pointed screws instead.