Hager Hinge BB181645 Full Mortise Ball Bearing Hinge 4x4

Product Description

The HAGER HINGE BB181645 is a full mortise, residential-weight ball bearing hinge designed for right-hand door applications. It measures 4 inches x 4 inches with a 5/8-inch radius corner on one side and a square corner on the other, finished in antique brass. Ball bearings reduce friction and wear over the hinge's service life, making this an appropriate choice for interior and light-duty residential doors that see regular use. Licensed door hardware installers, carpenters, and finish contractors are the typical trades that specify and install this hinge.

This hinge is suited for residential door installations where a full mortise application is required, meaning the hinge leaf is set flush into a mortised pocket in both the door edge and the door frame. The right-hand designation and the mixed corner profile — one square corner, one 5/8-inch radius corner — make it important to verify door hand and corner radius before ordering. The antique brass finish coordinates with period-style door hardware sets. This product must be ordered in multiples of 2.

Key Features

• Full mortise design seats flush into door edge and frame for a clean, low-profile installation
• Ball bearing pivot reduces operating friction and extends service life on frequently used doors
• Right-hand orientation with square by 5/8-inch radius corner profile
• 4 inches x 4 inches leaf size suits standard residential door widths and weights
• Antique brass finish for compatibility with traditional or period-style door hardware
• Sold individually; must be ordered in multiples of 2

Compatibility

Designed as an OEM-style replacement or new-installation hinge for standard residential full mortise door applications requiring a right-hand, square by 5/8-inch radius corner, 4 inches x 4 inches hinge in an antique brass finish.

Installation Notes

Installation is performed by a carpenter or finish door hardware installer using a chisel or router to cut mortise pockets to the correct depth in the door edge and jamb. Verify door hand and hinge corner radius requirements before installation, as these cannot be corrected after mortising. Confirm the door is fully supported and the opening is plumb and square before setting hinge screws. Follow local building codes for door hardware specifications on fire-rated or egress assemblies.