Ordered the hinge and 4 caps from APP. My door assembly is square and has 3 pieces and more screws than the video, including one screw behind the door lever. The lever (piece on door that enters the latch) must be removed to access. The parts fit fine to replace the old hinge that had 2 broken pins. There was no problem with caps but I replaced it with new and saved old. When re-installing lever. I had to research to find that screws should be snug while allowing the lever to slide to side in the track. Figuring out these differences from the procedure in the video was the only glitch and the door works well now.