You are correct. It is the same lock on their sliding doors. It's made by a company called Fleetwood. You can see the name on one of the pictures I posted in the first post.

That being said, I've seen door strikes that can handle deadbolts. The issue we would have is the strike cutout is in the middle of a 4.5 inch metal frame. It's normally much closer to the inside end of the metal.

Can anyone recommend a strike that would work for this type of setup? I don't think the fact that the lock is made for a slider makes a difference. It works now without a strike, so it should work fine with a strike, as long as the strike fits and can handle a deadbolt force.