Frederick N. Brier
Thank you both. I ended up going with an M4 size, as that was closest to the #8 that had an E-Z Lok that I liked. Then I bought matching screws. There was a less expensive E-Z Lok #8 made with zinc instead of brass, but I can’t help but over-engineer my solutions. I spent way too much on the Speedy Metals steel tubing <sad shake of head>.