Bommer BB5004-450-643 4.5" x 4.5" Steel Ball Bearing Hinge Full Mortise Heavy Weight

Bommer BB5004-450-643 4.5" x 4.5" Steel Ball Bearing Hinge, Primed for Painting
Bommer BB5004-450-643 Heavy Weight Full Mortise Ball Bearing hinge has a 5 Knuckle construction and comes in Primed for Painting finish. Bommer BB5004-450-643 Ball Bearings are hardened steel raceways and balls with steel pin. The BB5004-450 are recommended for heavy weight door with high frequency of use.