I had windows installed in my gazebo, but had them installed with the screens on the outside and windows on the inside (for easier cleaning access). My problem now is that strong winds blow the windows out! I need some type of l-shaped brackets (72 of them), with a 3/16" short side and a 1" long side, in some shade of brown. I need to have pre-drilled holes on the 1" side, over half way toward the long end. I've looked long and hard, with no success - can someone direct me to a resource for these, or do they not exist?
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You could get a length of 1" x 1" x 1/8" angle steel, and manufacture your own.
Start by using a chop saw to cut the angle steel into pieces as wide as you need.
Next cut one side of the L to 3/16". A jig will help you cut the pieces quickly and accurately.
Use another jig to help you drill the holes. A drill press with a carbide-tipped or cobalt drill bit will be useful for this.
Finally, paint the brackets to the desired color using a quality spray paint designed for metal.