Thanks for the info!Oh, I guess you didn't see the picture I posted from the manual. Haha. You have an inside banjo.
Just found the screw and it is a M4 flathead 12mm length, aluminum screw.
I did see the picture you provided but didn’t read the text as I assumed it was the same as what I read. Interesting that it is different from my manual. The one that came with my bike doesn’t reference inside vs outside banjo, it just says “shimano only”