Have installed the bolt without any problems in my standard patio door. Description for the installation is a bit thin. The attachment of the bolt consists of three 6 screws. I've been using a 4.5, 5 goes, drill drilled and then purely turned the screws with the cordless screwdriver. The bar makes a very stable impression and also sits very firmly in the frame. But you should still shatter film for Order the window / door to. As for breaking the glass of the bar can be easily removed.