Flight controller dampening washer (Passthrough)

I couldn't find anything online to buy same as the Revolt FC (Raceflight) dampening washers and I created one :). You will need to drill your FC mounting holes so the washer can fit in and allow a M3 screw to pass through. The outer wall diameter of the washer is 4mm. Washer top and bottom hold diameter is 5mm

Three different washers to choose from based on your FC thickness: 1.2mm, 1.4mm, 2.0mm