I want to hang fireplace tools next to my fireplace without damaging the stone work. I don't want to drill into it.
The stones have mortar between them with gaps about half an inch wide:
I would like to be able to put some sort of tension screw between those rocks that I could then hang something on. My plan is to use two such locations and use them to anchor a row of hooks on a board. All in all, it would have to hold about 20 pounds of fireplace tools.
Despite spending a bunch of time on Google, I wasn't able to find any hardware that would suit my needs. The closest I could come up with are "cap nuts" which I might be able to tighten in place if I put something rubbery on the end first:
What kind of hardware should I be looking for and how does it work?