PBB

The BB84 Half Surface 4-1/2” Door Hinge is a specialty hinge.  The hinge leaf will mount on the door frame in the standard mortise position and the other leaf mounts on the door face.  These are five knuckle, two bearing with square edges.  They are constructed of 10 gauge (.134”) steel that is then plated to the desired finish.  We ship in boxes of 3 hinges with the wood and machine screw.

The reinforcing pivot hinge is a good way to solve door sag issues. And also be a preventative solutions for future isses with extra heavy or wide doors. The hinges comes in two sizes 4 or 4.5 inches, and two finishes, prime coat and satin chrome. The hinge uses a heavy duty ball-bearing to add extra life.  The base metal is steel.