JAYCO is one of the companies that will respond to your request for this type of information.
Call them and have your VIN number handy... They will provide you a PDF with that info.
The best results I had with attaching heavy things to the RV thin Walls is put up a back board first. Then mount to it with screws as required...
Something like this from google images...
The wall anchor of choice is the MOLLY BOLT for mounting the BACKBOARD to the the thin walls. Once the backboard is up then you can use regular wood screws...
Roy Ken