Rainbow Pattern Machine or Wood Screws Included. Non Removeable Pins with Square Corners. Upgrade your commercial, bathroom, cellar, double, side entrance, French front entrance, security, or swinging doors with the Bommer BB5000-450-652 ball bearing mortice steel hinge. This heavy-duty hinge comes in a brushed chrome finish with self-closing feature and square shape. It includes fasteners, hardware, and universal mounting suitable for left, right, and center positions. Made with steel and chromium-plated material, the Bommer BB5000-450-652 model has a 4.5-inch height and comes in a pack of three. It is perfect for both interior and exterior use and is designed for easy installation. Get your hands on this commercial door hardware and add a touch of industrial sophistication to your doors.