Cal-Royal BB31 Standard Full Mortise Hinge
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Standard weight door receiving average frequency service (standard weight hinges) and high frequency service (heavy weight hinges). Designed to have both leaves mortised into the door and the jamb. The hinge sits flush with the surface of the door and frame.
ANSI Products Standards – CAL-ROYAL HINGES complies with ANSI A156.1 (Butts and Hinges), A156.7 (Template hinge dimensions), A156.17 (Self Closing Hinges and Pivots), A 156.18 (materials and Finishes).
- Full Mortise – Both leaves are mortised. One leaf in the door and one leaf in the frame (wood door or hollow metal door with wood frame or hollow metal frame).
- Standard Weight
- 2 Ball Bearings
- 4 1/2″ x 4 1/2″
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