Toilet seat hinge, toilet lid expansion screw, toilet seat fixing parts, 4-piece set

High-quality materials: The expansion ball is made of black rubber, the white screw with solid brass internal thread is made of nylon, the long screw and washer are made of 304 stainless steel, and the soft washer is made of ABS plastic. Durable, rust-resistant, and corrosion-resistant.

Rust-resistant design: The plastic washer will not rust. When tightening the bolt, the washer is pushed into the hole. Therefore, be careful not to overtighten the bolt to avoid crushing it. The screw has a solid brass internal thread, which is non-slip and rust-resistant.

Easy to use: Insert the toilet seat bolt into the mounting hole. The rubber washer is threaded; simply insert it into the hole in the top of the toilet.

As you tighten, the washer expands and secures itself. Universal use: If your toilet seat moves frequently, use these toilet seat fixing screws to replace the unnecessary plastic insert supplied with your new seat. These toilet seat accessories fit most standard toilet seats with top-mounted hinges and a hole diameter of 14 to 18 mm.