Something is seriously F***ed up.

I can't see it in the photo, please indicate with a mark of some kind where the nut is on the back of the fork. Ir is this some sort of a blind mount? and if so why don't you let the brake orient to the face, as it naturally would.

BTW- if the nut is in the back of the fork and lined up with the bolt as it is in the photo, the fork is defective.

A correctly drilled fork will be drilled square to the face. (no exceptions) The position of the exit hole in the back will conform this or prove otherwise. Gauging by the photo, I'd expect the exit hole to be much lower, down near the apex of the curve in the fork or even below that.