Stainless steel machine screw M6 (6mm thread). Suitable for all cars except Mercedes for which you need M5 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. Mercedes use the smaller M5 size.
This is ONE screw. The photo shows more than one so you can see them from different angles. Change the quantity to 2, 4 or however many you need.