Abstract: A motor terminal box of the present invention comprises a base having a first perimeter flange and a cover having a second perimeter flange adapted for engagement with the first perimeter flange. One of the first and second perimeter flanges has a projection and the other of the first and second perimeter flanges has a recess adapted to receive the projection when the first and second perimeter flanges are in engagement with one another. In another aspect of a terminal box of the present invention, the first perimeter flange has a first mating surface lying substantially in a first plane. The second perimeter flange has a second mating surface lying substantially in a second plane. The first and second planes are substantially co-planer when the first and second perimeter flanges are in engagement with one another.