I snapped off a rear mounting stud. I drilled out a hole about 15mm deep with a 6mm piece to try and make the thing come loose, to no effect. So now I'm stuck with a small hole, a tiny bit larger than the stud itself. I think the rear mounting studs are a lot longer than the normal ones anyway. Does anyone know how I can repair it? I'm thinking maybe drilling really far in with like a 4/5mm drill piece, then buying a threading kit and making a 6mm thread. I'll then fill the hole with some kind of 2 part glue and screw the stud in.