The photo is the upper back corner of the refer. The bracket is attached with two sided tape and sheet metal screws on the top and side. The bracket is screwed into the sheet metal of the refer. You would have to use a pry bar to remove it. Anytime you don't have solid steel to bolt to, you spread out the attachment, as I did, by using a large plate, two sided tape and sheet metal screws. When you install a residential refer, securing it is primarily done at the base. The sidewalls usually get some spacers to keep it in position and the top is secured to keep it from rocking front to rear or side to side. There is no need for structural steel at the top.
"Ray Chez"...the picture may be hard to decipher, but that's the rear corner of the refer. I can't think of any RV installation where the back corner of the refer would be visible.
It's been working for over four years and the refer never budged.
