These kits are designed for F1 cars.
It should be noted that all of the screws in the kit will be m3 size, other sizes not yet available.
The aluminum screws we have in stock are 6mm, 8mm, and 10mm (buttonhead only), all other m3 sizes for that car will be substituted with steel screws. We only include aluminum screws for the applicable places, if an area is deemed high-stress we substitute it with a steel screw.
Please note that if you have non stock parts on your car, there may be different screws needed. Our screw kits are pulled from the manuals of the stock vehicles.