Help with finding bed rail mounts for tri-fold

Hey guys, I have been searching for answers to this for a couple days now, and no luck. So I had a Tri-fold on my 2014 and it mounted using tabs that were slid into the bed rails. They had a small allen screw that pushed against the back of the rail, that kept them from sliding. And the cover had a pin that went through the hole in the tab. Then you simply threaded the rest of the handle up against that tab and it was tight. So I recent got a new truck and was hoping to keep the cover. I have the cover and all of the threaded mounting hardware. The problem was the little allen screws on the tabs on the rails were seized, making it really hard to remove them from the rails. I didn't think it was a big deal to just order new ones, so I just left them on the old truck. So now, I've come to find out that I should've put more effort into getting those off, to save. So do you guys know of anyone who sells just the 4 mounts that slide on the rails (or something similar, that will work)? I know it is kinda of hard to explain, but I figured maybe someone would know which mounting system I was talking about. I can provide pics of what I still have. I am not sure if I have any pics with the old mounts, but I can look. Thanks.

 

Man, no one with any info? I looked through pics and this was the best I could find of what I am looking for (or something similar.) Just a little bracket that slides onto the rails and has a tab with a slot in it to allow the tri-fold pin to go through.

I have extra bed cleats, I almost wonder if there is a way to even use those lol. The threaded hardware has an angled lip on it so if you go it tight against it, on all 4 corners, it may work, I dunno. Just looking for any solution to use my existing cover, when I need it. 90% of the time it is off of the truck.

 

Looks similar to my soft trifold cover, I'm fairly certain you could go to any place around you that sells caps/ covers and they can source one. Also i've gotten those slides at home depot before, you could go with a piece of angle iron just drill a few holes where needed and it will work.