When an object is mounted, if it is set into the surface, into a hole cut to fit it, where it becomes part of the flat plane. This means that the object itself is flush with its surrounding and not sticking out or above the plane into which it is placed (in contrast to surface mounting). In auto glass, windshields or backlites are flush mounted, particularly in older model hot rods and the newer model cars that do not have a windshield moulding.

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