The old electrical wiring is still acceptable ... When you attach the mounting strap to the box, use the same size screws you use to mount receptacles and switches.

Metal boxes mean you can drive strong screws into ... Gangable plastic electrical boxes do exist but they are not common. So, you will need to know the required size of box in advance.

we’ll discuss some key do’s and don’ts of electrical box installation. Electrical work can be dangerous if not done properly. If you are not comfortable working with electrical wiring, it is always ...

They're in tabs on the top and bottom of each switch. The screws also bore into holes on the electrical box behind them. To access the wiring, gently pull the switches out of the electrical boxes.