Model CHD4506 is a 4.5" x 4.5" heavy-duty commercial hinge featuring 4 ball bearings for smooth, long-lasting operation. Constructed from durable steel, it has square corners, a removable pin, and a 5-knuckle design. Made for high-frequency doors or heavy-weight applications, this hinge is fully reversible and includes Phillips flat-head screws for easy installation. Compatible with Hager BB1168 and Stanley FBB168.

• Size: 4.5" x 4.5" (114.3 x 114.3 mm)

• Material: Steel with steel pin

• Bearing Type: Ball bearing (4 bearings)

• Pin Type: Removable

• Corners: Square

• Knuckles: 5

• Number of Holes: 8

• Pin Diameter: 0.36"

• Screw Size: #12 x 1/2" (machine), #12 x 1-1/4" (wood)

• Use: Commercial doors, high-frequency service

• Installation: Phillips flat-head screws included