Hager Hinge BB181745 Full Mortise Ball Bearing Hinge

Product Description

The HAGER HINGE BB181745 is a full mortise, residential-weight ball bearing hinge designed for standard interior and exterior door installations. It measures 4 inches by 4 inches and features a left-hand orientation with a 5/8-inch outer radius corner profile. The antique brass finish provides a consistent, traditional appearance suited to period-style door hardware. Ball bearing construction reduces friction and wear on frequently cycled doors. This hinge is installed by carpenters, millwork contractors, and general tradespeople working on residential door frames and slabs.

This hinge is intended for residential-weight door applications where a full mortise installation is required. The left-hand designation and square-by-radius corner configuration make it suited to specific door prep specifications, so confirm door hand and corner radius before ordering. The antique brass finish coordinates with matching door hardware sets. This product must be ordered in multiples of 2.

Key Features

• Full mortise mounting for flush, clean installation in prepared door and frame cutouts
• Ball bearing pivot for smooth, low-friction operation on residential doors
• 4 inches x 4 inches leaf size for standard residential door weight and thickness
• Left-hand orientation with 5/8-inch outer radius corner on one leaf
• Antique brass finish for traditional and period-style hardware applications
• Must be ordered in multiples of 2

Compatibility

Designed as an OEM-style full mortise replacement hinge for residential-weight doors requiring a 4 inches x 4 inches ball bearing hinge with left-hand orientation and antique brass finish.

Installation Notes

Installation is performed by qualified carpenters or door hardware installers working on pre-mortised door slabs and frames. Confirm door hand, hinge count, and corner radius match the existing door prep before installation. Mortise routing should match leaf dimensions precisely to ensure flush seating. Follow applicable building and fire code requirements for hinge count and spacing on rated door assemblies.