Top & Bottom boom arm replacement mount point

I have my webcam mounted on a boom arm so that I can pull it out for zoom calls and stow it away when I'm not using it. 

I wanted to be able to have both a small light and my webcam mounted on the same arm, so I designed this replacement piece. I am using a this boom arm (https://www.amazon.com/gp/product/B074DW6T8L) – but there are a number of them that use the same design from other brands that this would probably work for. 

Print with supports, and I'd strongly recommend printing at 100% infill for added durability (don't want the screw mount breaking off in your webcam/light. 

Print one adapter and two nuts. I've also included a straight-up replacement part for the original as an STL as well, if you wanted to replace the metal piece with a printed one with maybe a pop of color.