The spiral tension pins from Toolcraft are an essential accessory for model building. These high-quality tension pins are made of spring steel and provide a reliable and stable connection for various applications. With a diameter of 4 millimeters and a length of 24 millimeters, they are ideal for precise fastening and assembly of components. The pins comply with the DIN7343 standard, ensuring consistent quality and performance. Packaged in a practical unit of 500 pieces, they are particularly economical and offer a long-term solution for your projects. The use of metal as the material group ensures high strength and durability, making them an excellent choice for demanding model building tasks. Whether for hobby use or professional applications, these spiral tension pins are versatile and contribute to the efficiency and accuracy of your work.