BB600 4-1/2 STANDARD WEIGHT BALL BEARING SWING CLEAR HINGE Fire Rated Hinges Patented ball bearing latch bolt

Patented ball bearing latch bolt operated by a screwin type knurled knob or flush key

The NB (no back) design offers a clean profile for applications where a minimal footprint is preferred

Multi-family housing

Ideal for barn doors in homes

4 Grade 1 UL1OC and UBC 7

BB600 4-1/2 STANDARD WEIGHT BALL BEARING SWING CLEAR HINGE Fire Rated Hinges Patented ball bearing latch boltCal Royal BB600 4 1 2" Standard Weight Ball Bearing Swing Clear Hinge The Cal Royal BB600 is a swing clear ball bearing hinge that allows the door to open to a full 90 while providing complete clearance of the door opening. Ideal for ADA compliant applications and anywhere a fully clear opening is required, such as accessible restrooms, corridors, and healthcare facilities. Key Features Swing clear design provides completely clear opening when door is