Mckinney Hinges T4A338641232DNRP Ball Bearing Hinge 4.5x4.5 in

Product Description

The MCKINNEY HINGES T4A338641232DNRP is a heavy-weight, 5-knuckle ball bearing hinge designed for commercial architectural door applications. Built from non-ferrous material with a satin stainless steel finish, it features a non-removable pin (NRP) for added security on outswing doors. The square corner design measures 4.5 inches by 4.5 inches, making it a standard fit for commercial-grade hollow metal and wood doors. Ball bearing operation ensures smooth, low-friction movement under sustained use. This hinge is installed by commercial door hardware specialists and general contractors working on commercial construction or renovation projects.

This hinge is suited for commercial interior and exterior door installations where durability, security, and a clean architectural finish are required. The non-removable pin configuration is a common specification on outswing exterior doors to prevent hinge-side forced entry. The satin stainless steel finish provides corrosion resistance in high-traffic or demanding environments. Architects, door hardware distributors, and commercial contractors specify this hinge for office buildings, healthcare facilities, educational institutions, and other commercial occupancies.

Key Features

• Non-removable pin (NRP) prevents hinge disassembly from the exterior side of the door
• 5-knuckle ball bearing construction for smooth, long-lasting operation
• Heavy-weight non-ferrous body for commercial-grade durability
• Square corner design at 4.5 inches x 4.5 inches for standard commercial door prep
• Satin stainless steel finish offers corrosion resistance and a clean architectural appearance

Compatibility

Designed as an OEM-style commercial architectural hinge suitable for standard 4.5 inch by 4.5 inch square corner door preparations on commercial hollow metal and wood doors.

Installation Notes

Installation should be performed by a qualified door hardware technician or commercial carpenter in accordance with applicable building codes and door hardware manufacturer guidelines. Ensure the door and frame are properly prepared with square corner mortises matching the hinge leaf dimensions before fastening. Use appropriate fasteners for the door and frame material. Do not remove or modify the non-removable pin assembly.