McKinney 8540-4-US15 Reinforcing Hinge, 4", 619 Satin Nickel Plated, Clear Coated Finish

The McKinney 8540-4-US15 is a full mortise reinforcing hinge built to add strength and durability to high-traffic openings. Measuring 4" in height, it features heavy-duty construction with a satin nickel plated, clear coated finish (619 / US15) that resists wear while blending cleanly with matching hardware. Designed for commercial doors, this hinge helps distribute stress and reinforce the door edge for reliable, long-lasting performance. Its precision-machined design ensures smooth operation and a secure fit, making it a dependable choice for architects, contractors, and facility managers who need proven quality at demanding entry points.

Features

• Full mortise reinforcing hinge designed for durable, high-frequency use.
• 4" height suited to standard commercial door applications.
• Satin nickel plated with a clear coated finish (619 / US15) for corrosion resistance and appearance.
• Heavy-duty steel construction that reinforces the door and frame.
• Precision manufacturing for smooth, consistent swing.