I used the ones suggested by hcb3200. I haul heavy stuff, appliances, building materials, etc. So I bolted mine to the bed. I found that the rubber "squeeze" holding scheme, did not really keep them real tight and I couldn't install them flat to the bed (they always skewed a bit instead of laying flat). Therefore I bolted the anchors to the plate (nut on the back and then used self tapping bolts to attach the pate to the bed. It is really strong. It may be not to everyone's liking, but it works great. See attached. don
