Plug welding it pretty easy - just make the holes big enough to get a good weld. 6 or 8 mm ish dia.
Practice on the old panel.
Did you drill through both panels, or is there metal left on the car itself? If all the way through, you might want a lump of brass or copper at the back of the hole to stop you blowing a bigger holes as you fill the plug weld hole.
Practice on the old panel.
Did you drill through both panels, or is there metal left on the car itself? If all the way through, you might want a lump of brass or copper at the back of the hole to stop you blowing a bigger holes as you fill the plug weld hole.