Mckinney Hinges 150241210B Spring Hinge 4.5x4.5 in Oil Rubbed Bronze

Product Description

The MCKINNEY HINGES 150241210B is a single-acting, standard-weight, full-mortise spring hinge designed for commercial architectural door applications. Built from steel with a square-corner profile and an oil-rubbed bronze finish, this hinge measures 4.5 x 4.5 inches and provides automatic door return after each swing cycle. It is engineered to meet the demands of commercial entryways where controlled, self-closing door operation is required. Licensed HVAC techs and facilities contractors specify spring hinges like this one for doors that must remain closed per fire or building code. Installation is handled by commercial door-and-hardware specialists or general contractors working to commercial build-out specifications.

This hinge is suited for commercial interior door applications requiring a self-closing mechanism without the added bulk of a surface-mounted closer. The full-mortise design fits into routed pockets in both the door edge and the frame, keeping the hardware flush and unobtrusive. The single-acting spring mechanism allows the door to swing in one direction and return to the closed position automatically. The oil-rubbed bronze finish coordinates with commercial-grade architectural hardware in hospitality, office, and institutional settings. Each unit is sold individually.

Key Features

• Single-acting spring mechanism returns door to closed position automatically
• Full-mortise installation keeps hinge leaves flush with door edge and frame
• Square corner profile for standard commercial door prep
• Steel construction rated for standard-weight door applications
• Oil-rubbed bronze finish for architectural hardware coordination
• 4.5 x 4.5 inch leaf size suits a wide range of commercial door thicknesses

Compatibility

Designed as an OEM-style architectural spring hinge for standard-weight, full-mortise commercial door applications requiring a 4.5 x 4.5 inch square-corner hinge with single-acting spring function.

Installation Notes

Installation is performed by a qualified door-and-hardware technician or licensed contractor. The door must be removed and all tension on the spring mechanism relieved before servicing or replacing the hinge. Full-mortise installation requires routed pockets in both the door stile and the frame to the correct depth for a flush fit. Follow local building and fire codes governing self-closing door hardware in commercial occupancies.