There are 2 adapters in here, one has the standard overhang of the actual plate and the other has this removed. Neither have any of the holes or screws of the actual plate and are designed to be incorporated into your thing. There is a 0.1mm prominence at the top so you can union it onto your work. The adapter does not have any real locking mechanism because it would depend on your work. All of my cameras are front heavy so gravity is my friend... unless I tip it upside down :) It should be easy enough to difference out a hole for a metal pin across the front, or develop a pin to the shape of the plate and put a hole in the front to accommodate, but again, it's there for you to integrate as you need.I would recommend printing the plate as dense as possible and with thick walls. It will deform in a real adapter and it will need to take a lot of physics.