Hager BB1279 US10B 4.5x4.5 Steel Mortise Hinge

The Hager BB1279 US10B Steel Mortise Hinge features a 4.5 x 4.5-inch size and a durable ball bearing design, suitable for heavy-duty commercial and residential doors. Made from high-quality steel with an oil-rubbed bronze finish, it ensures smooth and long-lasting door movement. Ideal for new installations or door hardware upgrades, this hinge provides reliable performance for everyday use.