dimmer-aluminum ground along with existing copper ground.
Just installed two dimmers side by side in a double wall box. They work fine. Each dimmer has a ground wire. I want to wind both ground wires (aluminum) around one screw located on the left side of a metal plate at the back of the wall box. The wall box already has a copper ground wire wound around a screw on the right side of the same metal plate at the back of the wall box. I don't think this would be a problem but want to be sure.
By the way I have other copper to aluminum wires marrited with the correct connectors. I just want to know about the ground wires. Thanks.