the door is 1.5" thick, the distance between the screw holes for the handle is 3 15/16"
The screw holes for the latching mechanism are close to 4 5/8". The dimensions of the latching mechanism that sit inside of the door are: 1/2" w, 3 3/16" h, 1" d
FYI, I don't need an external key hole; inside latch is fine.