80-Piece Set The set contains 80 butterfly nuts, mainly used for installation and fastening, as an auxiliary tool, and more types to meet your daily use. Multiple Type Combinations There are 4 different sizes of wing nuts, M4*20M5*20M6*20M8*20 that you can choose according to your needs for different purposes and projects. Beautiful Shape The head is shaped like a wing, which is very beautiful and makes the nut not only a clasp but also a good decoration. It has a special design, it is easy to install and disassemble. High-quality materials The wing nuts are made of high-quality white zinc, have high hardness and are not easy to deform. Wide range of applications Suitable for machinery and systems, electronic devices, communication devices, hardware lighting, bridge construction, furniture decoration, etc. Material Galvanized iron, galvanized, rust-proof and corrosion-resistant. Easy to install and remove, can be used multiple times. Usage Turn the nut by hand without any other tools, easy to install. Applications Wing nuts are mainly used in electronic products, household appliances, communication antennas, shipbuilding, aerospace, mechanical engineering, LED lamps, displays and other fields where devices often require insulation, disassembly and maintenance. Material: Galvanized iron Technical data: M4 * 20, M5 * 20, M6 * 20, M8 * 20 Supply 80 * Zinc alloy wing nut