I'm building a case to be extra quiet and would like to add washers to the case and drive screws. As I understand it, washers made of silicone, neoprene, rubber, etc. can assist with vibrations and dampen case noise slightly.
There are a few types of screws in a case. To find washers for them my question is: what sized washers go with what sized screws, or what is the name for these washers?