I am usually not a fan of crazy glues either but in applications where build up is limited, epoxies aren’t so great either. I don’t remember a hair line crack in plastic ever being successfully glued in high stress areas unless being able to add material around the crack. I doubt any glue will work for long in my case because the crack is in material that is only 1/2” wide x 3/16” thick and all the weight of the screen is on two of them. I’m surprised they didn’t crack sooner. The hinges rotate into the body with little clearance so I was only able to add a slight bit to them on the surface. Time will tell but I was impressed how the baking soda allowed me to thicken the joint and seems to adhere well.