Tank Mounting Replacement: This 2PCS set provides a matching pair of threaded fastener assemblies for replacing compatible toilet tank bolts at two mounting positions Stainless Steel and Rubber: The metal bolts, sleeves, and washers combine with rubber gaskets to provide layered mounting components for matching toilet tank hardware Gasketed Fastening Layout: Rubber seals sit with the washers around the mounting area, supporting a fitted connection when the bolt dimensions and fixture holes match Installation Fit Check: Approx 3.73 x 0.90 x 0.90 in, compare bolt length, thread shape, hole diameter, tank layout, washer order, and gasket arrangement before fitting Bathroom Hardware Update: Suitable for compatible toilet tanks, bowls, or seat hinge arrangements that use the same fastener design, with two matching assemblies for replacement, Manufacturer: XINRUI