This old looking thing is what I made years ago because the original one broke in half. I plan on using this again but I'll clean it up and paint it first.
 

I made this out of 3/8" thick steel and don't think it will break. There are 24 holes that are used to adjust the angle of the pole which worked great before. One thing I'll need to do here is drill the center hole to 1/2" diameter. I figure with all the extra weight, I'll need a stronger fastener.
 

What I'm doing here is making a plate that will go on the back side of the fascia board that I'll be fastening the base to. I'm using 1/8" aluminum for the plate and I'm getting ready to put holes in it. To make sure the holes are in the right location, I used my transfer punch to mark each spot.
 

I removed the clamps (from above) and used a 3/32" drill to pickup the spots the transfer punch left. Once the smaller holes were in the right spot, I used a slightly larger drill to get close the final size. Then I re-clamped the backing plate to the base again and drilled through each hole. That made sure they were all in the right spot.
 

This was easy to do and it went quickly. Now I could have used the large washers, like I had before, but with all the extra weight of the new pole, I wanted to make sure nothing came loose. What do I mean by things coming loose? As the flagpole moves in the wind, the bolts that go through the fascia board will move slightly. And when that happens, the washers on the back being small tend to work themselves into the wood and slowly come loose. However, using a large plate like this distributes the load out much better. And I'll be using lock-nuts here as well.
 

I'm going to paint the pole and bracket with white paint and the flag brackets and topper will have clear on those pieces. I like contrast which is why I'm using the clear, plus this will also protect the aluminum so it doesn't corrode as quickly.