Ah, sorry about the multiple post (no pun intended). I assume you cannot tighten it either? Why is the main terminal mount bolt an issue, unless you want to tighten it and you can't? If that is a problem, cut it off with a Dremel tool or a hacksaw and get a new T-spec distribution block, like this one for about $25!
Amazon product ASIN B088ZR67KP
Problem solved!!!
Amazon product ASIN B088ZR67KP
Problem solved!!!