1990 Winnebago Chieftain - Dropping Basement Storage Bins

Actually, I think I found some really nice toggle bolts that can handle up to 1000lbs or so in concrete (265lbs in drywall) and will take a 3/8" coarse thread bolt. They are good to about 3" of depth. I think they should work well with the fiberglass and assorted materials that are sandwiched together to make up the walls of my Chieftain.

So, I am going to give those a try and see how it goes.

Thanks for the advice. It made me re-think things and I found a better solution (I hope).