Door Pivot Hinges, 360 Degree Rotation Heavy Duty Stainless Steel Hidden Door Hinge Pivot Hinge System for Wood Doors, Hidden Door Bookcase and Interior Doors

Features: Made of superior stainless steel with brushed finish, will not rust and resist scratches and corrosions. Ball bearing structure can ensure the door rotates smoothly at 360 degree. Widely use in bedroom, kitchen, livingroom, mansion, tall building rotary door and so on High quality stainless steel made of genuine materials that can withstand high temperatures and have a longer lifespan The door pivot hinges fits for wooden door or cabinet door, and can be installed on the side or middle of the door Specifications: Color: Silver Material: Stainless Steel 201 Top Part: 130mm x 23mm / 5.12"x0.91" Bottom Part: 103mm x 23mm / 4.06"x0.91" Hole Size: 6mm/0.23" Load-Bearing: 220lbs / 100kg How to Install ? 1. Dig trenches in the door and frame as your needs. 2. Put the four parts into the correspoding positions and make sure their picots are on the same vertical line.  3. Use a screwdriver to adjust the adjustment screw on part #1 to the lowest point, so that the 12mm cylinder is adjusted to the highest position, and completely inside the panel.  4. Place the steel bead into the 16mm cylinder of part #4. 5. Then move the door to the door frame and make sure the 10mm cylinder of part #3 is in the 16-mm cylinder of part #4. Put the 12-mm cylinder of part #1 into the 18-mm cylinder of part #2.  6. Adjust the adjusting screw of part #1 up so that the cylinder of part #1 protrudes into the cylinder of part #2.  7. Adjust the screw until you can rotate the door smoothly.  8. If it doesn't rotate smoothly you can try and adjust the position of part #3 and #4. Package Included: 1 Set of Pivot Hinge 10 x 15mm Screws 10 x 28mm Screws