The spiral tension pins with a diameter of 8 mm and a length of 40 mm are made from high-quality spring steel and are characterized by their robust and heavy construction. These tension pins are ideal for use in model building and provide a reliable connection for various applications. With a package of 500 pieces, they are a practical choice for projects that require a variety of fastenings. The use of spring steel ensures high strength and durability, making the spiral tension pins a valuable addition to any toolset. The precise sizing and quality of the material guarantee easy handling and safe application. These tension pins are versatile and suitable for both hobby projects and professional applications where stability and reliability are essential.