This is a Triple throw, Double throw 10 amp switch I purchased from Radio Shack that uses #6 screws for connecting wires to the switch. I am using #6 crimp on ring terminals for #14 wire (Blue) and #6 star washers under the heads of the screws purchased from Home Depot.
If you were building many of these units, I would purchase #6 Phosphor Bronze star washers from www.mcmaster,com.