thanks. it happened to me but it is sticking out a bit i welded a nut on but i didnt do a great job cuz i was in a hurry and the weld broke. ill try it again with wax
seems like the hard way to me ,put the part in a ram EDM and burn the old stud out leaving the threads untouched .welding is dirty tedious and may not work plus high heat can warp aluminum and cause sink spots and meltdowns
No machine shops close to where I live have an Electrical Discharge Machine. There's a shop with a wire EDM but that's no good for disintegrating bolts/studs. Nuts and a MIG welder are my only option.