Sorry, no pictures handy, but I just put a TV on an exterior wall on our unit and the dealer warned me not to use bolts any longer than 1 1/4". I must admit, it's a scary feeling drilling not an exterior wall. Use a stud finder to be sure the backer plate is where the sticker says it is - ours wasn't.
Rob & Kelly, Bella & Brady (Miniature Schnauzers)
2022 Eagle HT 28.5RSTS
2017 RAM 3500 SRW CTD/AISIN CC LB