Bommer BB5004-450 4.5" x 4.5" Steel Ball Bearing Hinge Full Mortise, Heavy Weight, 5 Knuckle
The Bommer BB5004-450 Heavy Weight Full Mortise Ball Bearing hinge has a 5 Knuckle construction. Bommer BB5004-450 Ball Bearings are hardened steel raceways and balls with steel pins. The BB5004-450 is recommended for heavyweight doors with a high frequency of use.
|UL:||BHMA Certified Grade 1|
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