Installation Notice (The figure shows the most common wrong way.)
There are various installation methods, both sides can be flush or not aligned. Attention should be paid to the center of gravity of the hook and the installation distance. If the center of gravity is not correct, the hook will fall out of the hole when it is pushed. It is recommended to simulate the scene by hand before installation, and then install after confirming that the distance and center of gravity are OK. This kind of wrong installation situation more often happens in door mounting.