Perhaps a simple rivet or sheet metal screw can be secured in the hole.
Filling holes in sheet metal.
Excellent adhesion to galvanized metal.
Holes in thin metal can be filled with plugs.
Whether you re dealing with a small piece of sheet metal or something valuable like a car you can fix it.
Works on metal wood and concrete.
If you know how to weld take advantage of your tools for a longer lasting repair.
Repairs cracks or porosity leaks in cast metal parts.
Fills small holes cracks and perforations.
By filling in holes you stop rust in its tracks and ensure the metal lasts longer.
If the hole needs to contain a liquid a rubber washer can go on the sheet metal screw to render it water tight.
When filling thick sheet metal like that i let the copper plug stay a little proud on the show side and dressed it down the back side i filled with polyester filler bondo and as it deserves repeating i can not over emphasize the importance of cleaning the sheet metal thoroughly before soldering.
Body filler is a simple way to repair freshly cleaned holes.