Its getting colder in here, so I decided to change to winter tires and as I had a set of them on a separate set of steelies, I decided to do it myself. But the bolt on a rear left wheel decided "hell no!" The edges of the bolt head got sliced. Besides, the bolt itself is kind of low and it is set deep into the rim, so no chance to grab it with a proper tool. I've tried hammering on a smaller tool onto it, but no luck.
I guess I'll have to find a welder to weld a screw-nut onto the bolt now, or drill the bolt through. FML