MacBook Pro 15" Core Duo Model A1150 Upper Case Replacement
Getting these screws in and out is difficult because most screwdrivers are longer then the battery compartment is deep and so will be slightly off plumb. When you go to re-assemble the computer, getting these screws to seat is one of the hardest parts of the re-assembly. It's very important to be gentle and not to strip the threads.The screw should tighten and come to a stop after 3-4 turns. If you turn 6 or more turns and don't feel it grab, then back off and try again, making sure that everything is in alignment.It might be easier to start with the left screw, because it is further away from the latch mechanism.