Best 711420935 Full Mortise Commercial Hinge Steel

Product Description

The BEST 711420935 is a full mortise commercial hinge constructed from steel with a prime coat grey finish. Designed for heavy-duty door applications, it features a 3-knuckle design and a 360-degree range of motion, providing full rotational clearance for standard and specialized door swings. The door leaf and frame leaf each measure 4.5 inches in height and 2 inches in width. Weighing 1.2 pounds, this hinge is built for durable, long-term performance in commercial environments. It is installed by carpenters, door hardware specialists, and commercial contractors as part of new construction or retrofit projects.

This hinge is suited for commercial door installations involving wood and metal door types. Its full mortise design requires routing into both the door edge and frame, making it a clean, flush-mount solution. It meets ANSI K81071F and NFPA 80 standards, making it appropriate for fire-rated door assemblies and commercial code-compliant installations where these standards apply. The prime coat grey finish allows for field painting to match existing hardware or door frame finishes.

Key Features

• Full mortise mount type for flush installation in door edge and frame
• Steel construction for durability in commercial applications
• 3-knuckle design with 360-degree range of motion
• Prime coat grey finish suitable for field painting
• Meets ANSI K81071F and NFPA 80 standards for fire-rated door assemblies
• Compatible with wood and metal door types

Compatibility

Designed as an OEM-style full mortise replacement hinge for commercial wood and metal doors requiring ANSI K81071F and NFPA 80 compliant hardware.

Installation Notes

Full mortise hinges are installed by qualified door hardware technicians or commercial contractors. Mortise pockets must be accurately routed into the door edge and frame before installation to ensure a flush, secure fit. Verify door and frame material compatibility and confirm all fire-rated door assembly requirements are met per NFPA 80 before installation. Ensure the door is properly supported and all existing hardware is removed before beginning the replacement process.