We have an outside cabinet with a door that opens when it rains. I'm not sure why. But those brackets allowed us to install a 2x4 through the door to keep it closed, and now nothing opens in the rain. I LOVE that I don't have to risk a downpour to slam a stupid door. All I needed was a drill (we pre-drilled a few holes in the post) and a screwdriver. The brackets are supplied with high quality stainless steel screws. I love the brackets so much I almost wish we had another malfunctioning door so we could buy another set.