Deltana DSB45B3-UNL Square Hinge Ball Bearing Bright Brass

Product Description

The DELTANA DSB45B3-UNL is a 4.5 inches x 4.5 inches square door hinge built with ball bearings for smooth, consistent operation under repeated use. Constructed from solid brass with an unlacquered bright brass finish, this hinge is designed for architectural and commercial door installations where finish durability and mechanical reliability are required. The unlacquered finish allows the brass to develop a natural patina over time, a common specification in restoration and high-end architectural work. Sold as a pair, it is typically installed by carpenters, finish contractors, or locksmiths on interior or exterior door applications requiring a full-size, heavy-duty hinge leaf.

This hinge is suited for residential and light commercial door installations where a square-corner, full-mortise hinge profile is specified. The ball bearing construction reduces friction on high-traffic doors, making it appropriate for entry doors, office doors, and other frequently cycled openings. The unlacquered bright brass finish is commonly specified on doors where matching existing brass hardware or achieving a traditional aesthetic is a project requirement. Each sales unit ships as a pair.

Key Features

• Ball bearing construction for reduced friction and long service life on high-cycle doors
• Solid brass material with unlacquered bright brass finish that develops a natural patina
• Square corner profile for standard full-mortise door applications
• 4.5 inches x 4.5 inches leaf size suits full-size residential and light commercial doors
• Sold as a pair to cover standard single-door hinge replacement or new installation

Compatibility

Designed as an OEM-style replacement or new-installation hinge for full-mortise door applications requiring a 4.5 inches x 4.5 inches square corner hinge with ball bearings.

Installation Notes

Installation is typically performed by a licensed carpenter, finish contractor, or locksmith using a chisel and router to prepare the mortise in both the door edge and the door frame. Power down any electric strike or access control hardware associated with the door before beginning installation. Verify door weight and frequency of use to confirm the hinge size is appropriate before mortising. Follow local building codes for fire-rated door assemblies, as rated doors may require specific hinge specifications and certifications.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.