PCmods.com windows kit "washer size?"

[PhoenixOfWater]

Anyone know the size of the washer?
I didn't get one so I need to pick one up

Thanks

 

[SilverBack]

3/16 inch for the rim. any diameter will do as long as the metal from inner edge to outer is 3/16.

 

[PhoenixOfWater]

thank you