Toolcraft TO-5389944 Expansion Pins made of Spring Steel, quantity supplied 500 pieces. These precision expansion pins are designed for model building applications, specifically usable as solder sleeves and expansion bushings. Made from high-quality spring steel, these pins offer excellent durability and reliable performance in various modeling and assembly tasks. The spring steel construction ensures consistent expansion and holding properties for secure fastening in model building projects. Each pin measures approximately 8 mm in length with a diameter of 1.5 mm, with dimensions between individual pieces varying slightly. The set of 500 pieces provides ample supply for multiple projects or workshop use. These expansion pins are suitable for hobbyists, model builders, and technical enthusiasts working with scale models, miniature constructions, or precision assembly tasks. The spring steel material offers corrosion resistance and retains its mechanical properties under normal usage conditions. For long-term quality preservation, proper storage in a dry environment is recommended. The product packaging allows for organized storage and easy access during work.