We just got a new 2022 Reflection 260 RD. I have an 2021 F250 with ultimate tow package. I have everything set up and the last part is attaching the camera to the back of the trailer. I plan on putting it right below the wireless camera that came with the trailer. I am not sure what type of screw I should use to attach the mount to the trailer.... one inch Sheet metal screws or some sort of hollow wall anchor. Really would appreciate advice so I don't mess up the trailer.