
I'm a fan of a prop system that "locks" in place and prevents the prop from falling out of place in the event of a wind gust, being bumped, etc. So the first thing I did is whip up a bracket that has a receiver for a pit pin.
Next, I sourced some M6 studs that are specifically designed to be bonded on - note the oversized, perforated base. Then I mixed high density adhesive filler into epoxy resin, positioned the studs and let things cure.