Reddit reviews Straight Corner Brace, Set of 4 - Steel Brace (Also Known as - Straight Bracket, Steel Straight Brace, Steel Straight Brackets, Flat Straight Brace, Straight Steel Brace, Flat Steel Brace)
We found 1 Reddit comments about Straight Corner Brace, Set of 4 - Steel Brace (Also Known as - Straight Bracket, Steel Straight Brace, Steel Straight Brackets, Flat Straight Brace, Straight Steel Brace, Flat Steel Brace). Here are the top ones, ranked by their Reddit score.
Straight corner brace3.8 inch X .7 inchSet of 4Color - Silver - Color - Silver - Constructed from high quality Steel,ensuring quality and longevityCan also be know as Mending Brace, Mending Plates, Straight Mending plates, Mend Brace, Steel Mending plates
Possibly some Metal Brackets could work. You'll just need to look at finding some with the right diameter screw holes.
Also this would look God awful, but that's the true MacGyver way.
*Edit: Spelling