I used these as support brackets for an 8x8 service case so I could set up a 3" box to sit flush with the drywall. The brackets were free of manufacturing burrs, did not deform under moderate loads, and the pre-drilled holes were countersunk to ensure a secure fit. In my case I used stainless nuts and bolts to secure the box so I had to drill a little more holes. While the ones I installed will never be seen again, I think the appearance of the outdoor mounts like open shelving is perfectly acceptable.
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