EASY TO USE: Insert these toilet seat screws into the toilet mounting holes. The rubber grommets feature a threaded section, allowing them to be pushed directly into the holes on the top of the toilet pan. Tightening the screw causes it to expand and secure itself in place, eliminating the need for a nut on the opposite end. This design offers convenience and saves time. FOR WOBBLY TOILET SEATS: Use these toilet seat fixing screws to replace the ineffective plastic inserts commonly included with new top-fix seats. Compatible with most standard UK toilet seats featuring top-fix hinges. Fits 14–16mm holes. LONG-LASTING SOLUTION: Install the toilet seat and top-fix hinge hardware once and enjoy a secure fit for years. No need to repeatedly address loose or unstable toilet seats. QUALITY MATERIALS: Made from rubber and metal. The rubber sleeve resists dirt and wear, provides superior expansion, and is durable. Metal screws are protected by the rubber covering, reducing the risk of rust and extending service life. 100% GUARANTEE: All products include a 12-month warranty. We offer a no-questions-asked replacement or refund guarantee. We are committed to delivering high-quality products that meet your expectations.