Mckinney Hinges 150241226D Spring Hinge 4.5x4.5 in Square Corner

Product Description

The MCKINNEY HINGES 150241226D is a full mortise spring hinge designed for commercial door applications. It features a single-acting mechanism that automatically returns the door to the closed position after each use. Built with standard-weight steel construction and a square corner profile, this hinge measures 4.5 inches by 4.5 inches and ships with a Satin Chrome finish. Licensed HVAC and building trades professionals, along with commercial door hardware installers, specify this type of hinge for high-traffic interior and vestibule door openings where controlled, automatic door return is required.

This hinge is suited for commercial interior doors where a mortise-style installation is specified. The single-acting spring mechanism makes it appropriate for corridors, office entries, and similar openings that benefit from automatic closure without the added complexity of a separate overhead closer. Square corner sizing conforms to standard commercial door and frame preparations. The Satin Chrome finish integrates with common commercial hardware finishes in institutional, office, and light commercial building environments.

Key Features

• Full mortise design for flush, recessed installation in door edge and frame
• Single-acting spring mechanism returns door to closed position automatically
• 4.5 inches x 4.5 inches square corner profile fits standard commercial door preparations
• Standard-weight steel construction suited for typical commercial door weights and traffic levels
• Satin Chrome finish for a clean, professional appearance compatible with common commercial hardware sets
• Sold individually (each)

Compatibility

Designed as an OEM-style replacement or new-installation spring hinge for standard full mortise commercial door and frame preparations requiring a 4.5 inches x 4.5 inches square corner hinge footprint.

Installation Notes

Installation should be performed by a qualified door hardware technician or commercial carpenter familiar with mortise hinge preparations. Power down any electrified hardware in the door or frame before beginning work. The mortise pocket in the door edge and frame must be routed precisely to the hinge dimensions for proper seating and door alignment. Consult applicable building codes and fire-rated door assembly requirements before installation in rated openings.