Two new items, per customer requests:

The first is a Garmin socket flat mount, just use extreme (outdoor) double-sided tape to mount a garmin Quarter-turn device onto any flat surface. Uses my redesigned Eighth-Turn socket so that devices can be mounted in either landscape or portrait orientation without modification.

Garmin Eighth-Turn Socket Flat Mount

The second is the actual pronged mount meant also to be installed on a flat surface.

Garmin Quarter-Turn Flat Mount

Mounting surface on both items is approximately 2 inches (50.8 mm).