Aoibox Hidden Door Hinge with 360 Degree Rotation Solid Stainless Steel Construction 570 lb Load Capacity

570 lb Heavy-Duty Load Capacity: supports substantial door weight through thickened stainless steel construction and engineered structural design, ideal for oversized or solid core hidden doors. 360 Degree Swinging Rotation: allows doors to open in either direction with smooth pivoting motion, perfect for traffic flow in kitchens, pantries, or commercial spaces requiring two-way access. Completely Concealed Flush Mount Design: hides all hinge hardware from view when door is closed, creating seamless wall appearance for modern architectural aesthetics and secret door. Dual Installation Methods Available: accommodates bolt-on mounting using 1/2 in diameter bolts or direct welding to frames, providing flexibility for wood, metal, vinyl, and PVC door applications. Corrosion-Resistant Galvanized and Powder-Coated Finish: inner galvanizing with outer spray coating protects against rust and degradation in humid environments including outdoor gates and pool. 7.09 x 2.79 in Plate Dimensions: provides substantial mounting surface area for secure installation on gates, barn doors, interior hidden doors, and fence applications requiring robust hardware.