The threaded sleeves from Anuba are specifically designed for use in door fittings and provide a reliable solution for fire protection doors of class VSSM EI30. Made from galvanized steel, they are characterized by their high strength and durability. With a length of 47 millimeters and a diameter of 13 millimeters for the countersunk screws, these sleeves are ideally suited for various applications in door installation. The silver color gives them an appealing look and allows them to blend harmoniously into different environments. These threaded sleeves are manufactured in Germany and meet the high quality standards required for door fittings. They are an essential component for the safe and effective installation of fire protection doors and contribute to compliance with fire safety regulations. The use of high-quality metal ensures reliable functionality and a long lifespan, making them a valuable choice for professionals and DIY enthusiasts alike.