Customizable Screw-to-Screw Connector

On a random journey through designs, I happened upon the Toothpaste Transfer tool. Unfortunately, there's just no consistency out there in thread design and the tool didn't fit my specific need; no amount of scaling would work. What I really needed was a generic tool to patch any two different screw threads together.

So, based on that original requirement of refilling a toothpaste tube, here we have a tool for connecting any two screw sizes you might need to connect. It's a basic thread desig