I first use these on the Tacoma with all the paneling in the bed. 1/4 inch size.Nut plates are the bees knees.
PEM nuts are ight. Use them a ton at Mob Armor but can see how they wouldn't be great for dirty/larger applications.
I wanted to use them on the skid plate because it’s a bitch to get to the backside with a wrench. Time will tell if I made a bad decision but I feel good about it