Abstract: An interface mechanism is used for shutter systems, which includes a hollow nylon bushing and a pin. The pin is positioned within the hollow bushing by inserting the pin therethrough and into the louver. The nylon bushing is press fitted into the stile and is held immobile by ears or flanges. Rotation of the louver causes the pin to turn within the bushing providing a uniform tactile feel and long life, as a result of a section of tiny grippers located adjacent to the head of the pin.