Deltana DSB35B3-UNL Square Hinge 3.5x3.5 Unlacquered Brass

Product Description

The DELTANA DSB35B3-UNL is a 3.5 x 3.5 inch square door hinge with ball bearings and an unlacquered bright brass finish, manufactured from solid brass. It is designed for interior and exterior door installations where smooth, low-friction operation and a polished brass appearance are required. The ball bearing construction reduces wear at pivot points, making it well suited for high-traffic doors. Sold as a pair, this hinge is typically installed by finish carpenters, door hardware specialists, or general contractors during new construction or door replacement projects.

This hinge fits standard residential and light commercial door applications where a square-corner hinge profile is specified. The unlacquered bright brass finish is appropriate for installations where hardware will be maintained or where natural brass patina development is acceptable. It is commonly used on interior passage doors, entry doors, and closet doors that call for solid brass hardware. No specific compatible door or frame model numbers were provided by the manufacturer for this SKU.

Key Features

• Ball bearing construction for smooth, low-friction pivot operation
• Solid brass material for corrosion resistance and long service life
• Square corner profile for a traditional, clean architectural look
• Unlacquered bright brass finish allows natural patina development over time
• Sold as a pair to cover a single door hinge location

Compatibility

Designed as an OEM-style solid brass square hinge replacement for standard residential and light commercial door installations requiring a 3.5 x 3.5 inch square-corner hinge with ball bearings.

Installation Notes

Installation is performed by carpenters or door hardware professionals using standard hand tools and a chisel for mortising. Power down any associated electronic hardware such as electric strikes or access control devices before beginning door removal. Follow local building codes for hinge quantity and placement requirements based on door height and weight. Avoid over-driving fasteners into the hinge base, as this can distort the leaf and affect alignment.