Yes, you are correct, I was just looking at one of mine last night and noticed the same thing and thought of your comment, just hadn't posted yet. You beat me to the punch lol
Those screws are stupid small, I've lost several myself. I'm tempted to re-tap 2-56 or so on some of them and replace with steel or SS screws... or nylon if I need them insulated. And John is 100% correct, using the MTH 10 pin board in the loco will be a test as it definitely will not fit that location without some serious changes to either the frame or the cab floor. I've got some ideas but they are not plug and play.
You need to show some pictures