Chosen Solution

Is there any free printable sheets I can download to help with making screws go into the right location while doing a repair for any iPhone

Good idea and a google search might help. The problem is a minor bump and the screws are all over the place. Now if you had a magnetic mat like this one: Magnetic Project Mat you could tape down a paper screw and parts template on it and use it for lot of repairs. I know this might not be the answer you are looking for but I’m just kicking the idea around. Problem would be the 11.5" x 7" standard paper size.