Clip helps as a safety catch also.. trust me I need all the extra help I can get with my luck..
I was was looking at my old class 4 receiver I had removed, and decided to have the safety chain mounts cut from them and welded on the very back of the bumper. I also still retained the original attachments points that came with the SA steel bumper.
I know this one looks a little strange but the "long vertical thing" is with my hitch mounted.