Created a few adapter for a few 3" builds which had used a combination of 20 x 20 M2 & M3 screw stacks.

M2-Screw-M3-BottomPlate-Adapter - Used for using 20x20 M2 ESCs/FC on bottom plates drilled out for 20x20 M3.

M2-Screw-M3-FC-Adapter - Used for using a 20x20 M2 ESC with a 20x20 M3 FC. NOTE: Use screws long enough to go all the way through

M2-Screw-M3-F1-Millivolt-Adapter-v1 - Used for using a 20x20 M2 ESC with a 20x20 M3 FlightOne FC like the MillvoltOSD which uses friction fit with gummies to hold in place. NOTE: Use screws long enough to go all the way to the top of the adapter. See pic(s) . This is NOT to be used with short screws.This was designed for screws to touch the top of adapter

Message me if you'd like one printed.

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