The tension pins with a diameter of 12 mm and a length of 40 mm are made of high-quality spring steel and offer a lightweight design that is ideal for various applications in model building. These tension pins are manufactured according to the DIN7346 standard, ensuring a reliable connection and stability in your projects. With a packaging unit of 50 pieces, they are a practical choice for hobbyists and professionals who regularly work with precise fasteners. The spring steel provides high strength and durability, while the exact dimensions allow for easy handling and integration into existing constructions. These tension pins are an essential accessory for anyone who values quality and precision.