That's smart. I'm all outside too.
You want to start with a smaller drill, about 1/8th diameter for a pilot hole. Careful, it's easy to break. I did. The screws are hard to drill. You may even have to go to the side of them and install the new one at a slight angle. Only do a couple at once. Use the holes in the bracket as a guide. You'll have to eyeball the center. Then drill it to the base drilll size, goop it, and install the new screw. I even used a black paint marker afterwards to match. Aluminum does react with dissimilar metals, so makes sure you get sealer in that hole to coat the threads. Something that wasn't done by the factory. Maybe it was Monday morning. Lol.
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