Full Mortise, Heavy Weight, Four Ball Bearing

• For Heavy Doors (such as entrance and corridors) or doors receiving high frequency service.
• Inner edges are beveled to conform the shape of barrel and to make close fitting joints.
• Heavy weight template hinges are equipped with all machine and one half wood screws.
• Designed to have both leaves mortised into the door and the jamb (wood door or hollow metal door with wood or hollow metal frame).
• The hinge sits flush with the surface of the door and frame when installed, leaving a smooth finished appearance.
• UL Listed (3 Hours), Steel & Stainless Steel type hinges for use on swinging type fire doors.
• 4.5" x 4"
• GA .180