I'm trying to convert a recently purchased dryer from a three prong cord to a four prong cord to match my outlet. However, it doesn't have a green screw for the ground line. Where do I connect the green cord?
I'd try the screw above N for ground
It looks like the hex-slot screw going into the top center of the metal plate above the terminal block is your ground screw, so I'd land the cord ground there. It doesn't need to be connected to a wire within the dryer, either: the cord ground simply needs to ground the dryer's chassis/frame to provide protection from electric shock.