Package: 40 pieces of wing nuts; M4, M5, M6, M8 have 4 specifications, multiple sizes, complete specifications, to meet the product needs of most customers, and are the best fastening accessories. Material structure: Made of high-quality zinc alloy; well-made, thick material, firm and stable, good fastening effect, anti-corrosion, anti-rust, exquisite craftsmanship, trustworthy. Size: 4 specifications: M4, M5, M6, M8; Surface plating treatment, fine workmanship, strong and durable, tight fit, the butterfly-shaped design is beautiful and generous, and different sizes can always find a suitable specification. Convenient and practical: easy to use, convenient and fast. Simple design and traditional craftsmanship, evenly distributed threads, better uniform force contact with the connecting parts to be tightened, achieving a locking effect and essential auxiliary accessory for tightening. Wide range of uses: It is suitable for mechanical industrial fasteners, household equipment, electronic equipment, construction equipment, mechanical products and can be used as ideal locking hardware for homes, businesses, shops, etc. Product Descriptions Material: Zinc Alloy Size: M4, M5, M6, M8 Color: White Zinc Feature: Convenient and practical: Easy to use, convenient and fast. Simple design and traditional craftsmanship, evenly distributed threads, better uniform force contact with the connecting parts to be tightened, achieving a locking effect, and an essential auxiliary accessory for tightening. Wide range of uses: It is suitable for mechanical industrial fasteners, household equipment, electronic equipment, construction equipment, mechanical products, and can be used as ideal locking hardware for homes, businesses, shops, etc. Note: Due to manual measurement, please allow a slight deviation of 1-2 cm. Due to the difference between monitors, there may be slight color difference between the image and the actual product, please refer to the actual product. Package Contents: 10 x M4 Wing Nuts 10 x M5 Wing Nuts 10 x M6 Wing Nuts 10 x M8 wing nuts