Upgrade your bicycle's performance with these precision-engineered rear derailleur screws. Made from durable steel with a sleek black finish, these fixing bolts are specifically designed for TX35/TZ50 rear derailleurs and mountain bikes. The robust construction ensures reliable attachment and smooth gear transitions while riding. These replacement screws provide secure mounting for your rear derailleur, a crucial component in your bike's shifting system. Perfect for maintenance, repairs, or upgrades, these screws are compatible with most standard mountain bike models. The black finish not only looks professional but also offers resistance against daily wear and tear. Keep your bike's shifting system properly secured with these essential hardware components.