Best 711040822 Full Mortise Concealed Hinge 4.5in Ss

Product Description

The BEST 711040822 is a full mortise concealed hinge built for commercial and institutional door applications where durability and a clean finish are required. Constructed from 304 stainless steel with a satin stainless finish, this hinge meets ANSI A156.1 and BHMA standards, making it suitable for high-traffic environments. The door and frame leaf heights are both 4.5 inches, with a leaf thickness of 0.134 inches. Two ball bearings support smooth, consistent door operation over extended use cycles. This hinge is installed by commercial door and hardware professionals as part of new construction or retrofit projects.

The 711040822 is designed for full mortise door installations where the hinge leaves are recessed flush into both the door edge and the frame. It is suited for interior and exterior commercial doors in facilities such as office buildings, healthcare environments, schools, and government structures. The 5-knuckle design and 8 mounting holes provide stable, secure attachment on medium to heavy door assemblies. The satin stainless steel finish is corrosion-resistant and complements standard commercial door hardware finishes.

Key Features

• Full mortise mount type — leaves set flush into door edge and frame for a concealed profile
• 304 stainless steel construction with satin stainless steel finish for corrosion resistance
• Two ball bearings for smooth, low-friction swing operation
• 5-knuckle design with 8 mounting holes for solid, stable attachment
• Meets ANSI A156.1 and BHMA standards for commercial door hardware
• Pin material is stainless steel with a pin diameter of 0.311 inches

Compatibility

Designed as an OEM-style full mortise hinge replacement suitable for commercial hollow metal and wood door frames requiring a 4.5-inch leaf height and ANSI A156.1 Class 191FBB compliant hardware.

Installation Notes

Installation is performed by licensed door and hardware technicians or qualified commercial contractors. The door must be fully supported and secured before hinge removal or installation to prevent damage or injury. Mortise pockets in both the door edge and frame must be accurately routed to the correct depth to achieve a flush leaf seating. Follow applicable local building codes and manufacturer torque specifications for fastener installation.