High Quality: Made of high quality carbon steel, high hardness material, high quality workmanship, rust-proof, corrosion-resistant, strong and durable, clear and complete thread, smooth screwing, high performance. Multi-Purpose: Hexagon nuts are widely used for fastening related structural components, ideal for daily installation or fixation, home and office appliances, mechanical assembly and other industrial equipment. They are also suitable for replacing damaged or missing nuts for your daily needs. Easy to Install: The hex nut has a hexagonal appearance, it has a sufficient force surface to protect the screw and parts from damage and the threads are very clear. They do not deform or slip easily during use (a wrench is required for installation). Distinction: Hexagon nuts can be used for fixed and immovable objects, while other nuts must be used with washers and can only be used for tree-shaped objects. Package includes: 20 x M6 Hexagon Nuts.