I checked that already, and it's tight.
I pulled the other
tank out last night just to see how the screws fit in it, and they seem to be OK. I could tighten them down and it took a little bit of turning with the screwdriver to loosen them up again. I think this one
tank just has bad posts. I haven't tried different screws in it yet, but I'll do that today, JUST IN CASE, but I think unless I could replace the posts on this one, it's garbage. It's a shame, because I really made some nice coils for it. Considering how small they are, I was pretty darn proud of myself.