I have a 2009 Kia Rio, and one of the studs for a rear wheel got broken (probably the local tire shop's fault, but it's my word against their's).
I went to an auto parts store to get a replacement. However, the diameter of the end closest to the head (that actually meshes with the hub) was too small, and I could easily seat the head of the stud flush against the hub and spin it with my fingers. Obviously the wrong part.
I figured this was simply a case of the aftermarket stuff not being quite right, so I went to the dealer. They sold me an equivalent part to what I got at the auto parts store. I explained the situation, and they went around and around, but couldn't find the right part.
Any ideas for what I can do now? If the dealer can't even give me the right stud, how do I go about getting one?
Edit: Previous owner of the vehicle back that corner of the car into a concrete pole, and it had some very minor damage to the bumper, taillight, and body when I bought it. I suppose it's possible, though I feel highly unlikely, that there was damage to the wheel and hub, that they had an aftermarket hub put on, and that the aftermarket hub has slightly different studs? When I have a chance, I'll try to verify if this is the case...