The No 3020 heavy duty offset pivot hinge is used when jamb-mounted hinges are inappropriate or undesirable. The hinge incorporates a roller bearing to swing even the heaviest of doors. When mortised into the door and the frame, only the barrel is visible. Nanz manufactures 48 configurations of top, bottom and intermediate applications. Specify dimensions and configuration when ordering. All Nanz plated and patinated finishes are available.