Zoo Door Hinges ZHS43 Ball Bearing Steel Butt Hinge 4" 102mm FIRE DOOR FD30/60
Zoo Hardware ZHS43 Ball Bearing Hinges. BALL BEARING HINGES. Smooth Action: Ball race bearing for durability. Hinge Knuckle Width: 14.5mm. Designed for use on 30 and 60 minute Fire Doors FD30/60 rated, BS EN 1634-1.