McKinney MPB68-4-1/2x4-1/2 Full Mortise MacPro Standard Weight Ball Bearing Hinge, Five Knuckle, 4-1/2" x 4-1/2", Square Corner

The McKinney MPB68-4-1/2x4-1/2 is a full mortise, five knuckle ball bearing hinge from the trusted MacPro line, built to deliver dependable performance on standard weight, medium to high frequency doors. Measuring 4-1/2" x 4-1/2" with a square corner profile, this hinge combines two ball bearings with a durable steel base for smooth, quiet operation over years of use. Its five knuckle design ensures balanced load distribution and a clean, professional appearance on commercial openings. Suitable for interior applications where reliability matters, the MPB68 is a practical choice for offices, schools, and institutional buildings that demand consistent door movement and long service life.

Features

• Full mortise design for standard door and frame preparations.
• Five knuckle configuration provides even load distribution and a refined look.
• Two ball bearings deliver smooth, quiet swing on medium to high frequency doors.
• Standard weight construction suited for typical commercial door applications.
• Square corner profile fits standard mortise templates.
• Available in a range of architectural finishes to match surrounding hardware.