Does anyone know the wheel bolt size/length I need to fit OZ superturismo GTs on the B5 S4? I picked up a set, but I'm two hours from my car. I need to try to get bolts ordered asap to get them on my car by Sunday, long story. I did some measurements using a stock bolt on both wheels, and I came up with the bolt sticking out 11mm longer with stock. Which would make me think I need a 39mm shank? Stock is 28. I'm just not sure if this is right, since I was testing with a ball seat lug into a cone seat wheel for the OZ. I'm pretty sure the OZ is cone seat, was hard to see in there. Can someone verify this too? Searching wasn't very helpful.
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