The Ives 5BB1 4.5X4.5 5-Knuckle Ball Bearing Hinge, Standard Weight, 4-1/2" x 4-1/2"
This 5-knuckle ball-bearing hinge features a full mortise hinge design and square mounting style, providing strong and secure door installation. The ball bearing type enhances smooth and quiet operation, while the removable pin allows for easy door removal: standard height and weight offer universal compatibility.
Ives 5BB1 Certifications
- Certified to ANSI/BHMA A156.1 for performance standards
- Meets ANSI/BHMA 156.7 for template hinge dimensions
- UL Classified for windstorm rated assemblies - R37965
- UL Listed, 3 hour fire doors
