What You Will Get: The package includes 12 pieces butterfly nuts in 4 different sizes, mainly used for installation and fastening, the quantity is sufficient to meet your different demands. Durable Material: Made of high-quality white zinc, the wing nut is hard, durable, not easy to deform. The smooth silver surface is resistant to rust and corrosion, cleaned with water can be bright as new. Wing Design: The appearance of the nut is similar to wings, so it is also called wing nut. The special design makes it easy to tighten and remove without using other tools, which is convenient and saves your time. Different Size Combination: The package includes the wing nuts in 4 different sizes, including M4, M5, M6 and M8, 3 pieces per each size, they can be applied to different purposes, and can be used repeatedly. Wide Application: Ideal for machinery and equipment, electronic products, household appliances, communication equipment, hardware lighting, bridge construction, furniture decoration