Deltana DSH4R51B Spring Hinge 4x4 5/8 Radius Flat Black

Product Description

The DELTANA DSH4R51B is a self-closing spring hinge designed for interior and exterior door applications where automatic return is required. Built with a 5/8-inch radius corner profile and a 4-inch x 4-inch leaf size, it delivers consistent tension-controlled closure on standard residential and light commercial doors. The flat black finish provides a clean, uniform appearance suited to modern and transitional door hardware sets. This hinge is installed by finish carpenters, door hardware specialists, and general contractors working on new construction or replacement projects.

This spring hinge is suited for interior passage doors, entry doors, and fire-rated door assemblies that require a self-closing function to meet code compliance. The 4-inch x 4-inch format fits standard door thickness ranges used in residential and light commercial builds. Its flat black finish coordinates with contemporarily styled lever sets, deadbolts, and door pulls. A single unit is sold per each, with case quantities of 50 available for volume installations.

Key Features

• Self-closing spring mechanism provides automatic door return without a separate closer
• 4-inch x 4-inch leaf dimensions suit standard residential and light commercial door frames
• 5/8-inch radius corners for a traditional mortise hinge profile
• Flat black finish for a consistent, low-sheen appearance
• Compact overall footprint: 4.6 inches long, 2.8 inches wide, 0.9 inches thick
• Lightweight at 0.8 pounds per unit, simplifying handling during installation

Compatibility

Designed as an OEM-style replacement or new-installation spring hinge for standard residential and light commercial doors requiring a self-closing mortise hinge in a 4-inch x 4-inch format.

Installation Notes

Spring hinges are typically installed by finish carpenters or door hardware technicians using standard mortise chisels, a drill, and appropriate wood screws. Adjust spring tension only with the tension adjustment pin supplied with the hinge, and set tension before fully seating all screws. On fire-rated door assemblies, verify that the hinge meets the required closing-force and label requirements per the applicable fire door assembly listing. Always confirm door weight and frequency of use are within the hinge rating before finalizing the installation.