This replacement tet seat hinge is crafted from durable zinc alloy with a silver-plated surface, ensuring long-lasting use without oxidation. The hinge features a low melting point and good fluidity, making it easy to weld. Small stainless steel screws included are rust-proof, while strong nylon fixing nuts resist corrosion like metal wing nuts. The hinge comes with ample nylon washers and adjustable fittings for a secure fit. Designed for MDF, wooden, or resin tet seats, it is suitable for bathroom, hotel, and public space applications. The package includes two zinc alloy hinges, two screw nuts, eight stainless steel screws, two galvanized screw rods, and four white washers. The hinge's mounting hole distance is 1.5 cm, with size details shown in the picture. Please allow 1-3 cm manual measurement error. Colors may vary slightly due to different lighting conditions.