Review on 4 E-Track Wood Beam End Socket Shelf Brackets with E Track Fittings, Ideal for 2x4 & 🔩 2x6 in Trucks, Trailers, Vans, RVs, Cargo Tie-Down Systems, ETrack Tiedowns for Custom Load Bars, Handmade Cabinets, and Shelves by Jessie Zdunich

Springs are good, fit is a little loose. I would put 5 but here is what happened. I use them to install a bed in my 6x14 cargo trailer, I bought single hole E-Track mounts. Want to be able to put up a bed for sleeping and remove to transport an ATV. The 2x4 is a bit loose on this product so I put a screw in one of the side holes. Then I realized that the spring-loaded deal at the top wouldn't open when the board was pushed against it. So I shortened the board. was another problem. Product must be tilted to remove. obviously if both are "inside" then the thing becomes permanent when screwed to the board. Still working on a workable solution to stop the wobble. Gaskets.?.I know. You E-Track know-it-alls think I'm stupid for expecting it to do something it should never do. Hey first time here just to explain to others in case they are going to use the same one. The product is very durable and too built for what I use it for. But there's no better solution than E-Track to set up a bed or use E-Track cargo strap channels for whatever you're transporting. I like this material very much.