I was planning tonight to attach my Fuel Pax and cooler with pop rivets. I would be using aluminum 3/16 by 1/2 inch rivets. The pop rivets would only secure items in place, not necessarily hold the weight because the items will still be on the floor of the bed. I really wish Ford had a decent system of secure tie downs. They rely blew it With their lack of anchor points. Does anyone see a problem with pop riveting the bed?