When I swapped out the battery, I noticed the slightly longer screws were at the center back between the hinges and the interior area screws, (two located between fan vents, one under the factory seal and the other in approximately the same location on other side). I didn’t actually check the one under the seal - the tape held that one in place, but assumed it was similar to the other interior screws. All the perimeter screws except the back center were shorter ones.
