8-Pack 6 inch Hidden Door Hinges Heavy Duty Black, Invisible Concealed Hinges Zinc Alloy 6''x 2.5''x1Inch,180 Degree Swing Hinge, 3 Way Adjustable Hinge with Pins and Screws

Dimensions:6 x 2.5 x 1 inch. Each hidden door hinge measures 6 inches x 2-1/2 inches x1 inches, standard template hole locations | Door Size:Minimum thickness of door leaf: 35mm -40mm,Maximum width of door leaf: < 1000mm. | 3-Way Adjustability: vertical 3mm, horizontal 2mm and depth 1 mm. | Material: Zinc alloy embryo + aluminum alloy core. Coated with matte black finish. Concealed door hinge for doors are made of solid zinc alloy by precision die casting. It is Sturdy, corrosion resistant and has a long service life. | Hidden DesignHeavy-duty 180 degree Hidden hinges meet ANSI/BHMA standards, perfect for any commercial or intensively used door, including wooden doors, flush doors, metal doors, fireproof doors, noise isolation doors, security doors, etc.