Hello I bought a car Škoda Superb 1.9 TDI 96kw and I found that there are non-original wheels with special screws but it's all screws not one per wheel as usual, so I do not know if these are safety screws but I do not succeed to get them no key or extension. The screws have a round head with an inner nine-edge and it looks like there is a smaller rounding at each edge. The hole has a diameter of about 12-14mm, it cannot be measured very well because the screws are embedded in the disk. Please do not know what this is and where such a key could be obtained?