My truck (ex-Penske) has some kind of fiberglass covered wood for sides, no mid-box framing otherwise. I had a truck accessories company put in the e-track and they used some kind of bolts or t-nuts with white plastic heads on the outside to seal the holes. There are no threaded bolts protruding on the inside, so it's probably t-nuts; I would think that exposed bolts would be a negative feature to pleasant use of the truck. I had them put in three levels of e-track: one near the floor, one at roughly chest height, and one in the middle.
That has served me well for a little over 10 years of not heavy use, and the e-track has made the sides a little less flexy.
Brian's comments about how to strap are right on.
I ordered the same bolts that the manufacturer used. I have maybe 100 of them I should have been clearer on that. My question should have been more about the bit used and what drill to use? Does anyone know what the side is made of? It's a Penske lease truck we bought two years ago.
