Screw down bowden stepper bracket designed specifically around one of mine to ensure a snug fit. This is the same type unit supplied with a Tronxy P802E

All screws are counter sunk. The fit is secure enough that the 2 x M3 mounting screws are optional. I run my printer without the M3 screws just fine and am able to pull the servo out of mount to deal with any filament issues but the holes are there if you prefer wearing a belt with suspenders. It's intended use is to mount it atop of a Lack cabinet for easy of accessibility when loading filament but with some modification to the mounting it could find use in applications other than directly overhead.

Tip for filament change. Heat nozzle up, press the extruder drive release then hand feed a small amount of filament in before withdrawing it back out from the print head. The filament forms a glob that won't easily return back up the heat break.This flushing process will clear and release it making for removal easy.