Mixed Hexagon Head screw and Nut set. The use of top metal materials, smooth edges, corrosion resistance, rust, oxidation resistance, to ensure that every fastening is stable as a rock, lasting. Precise and efficient thread design, excellent process between smooth rotations, compact structure resistance to deformation, so that your every project is accurate. Carefully designed grid plastic storage box, so that storage, carry, use in one go, easy to manage all kinds of fasteners. Whether it is mechanical repair, furniture assembly, automotive electronics, environmental communications, power electronics, DIY creation, this versatile set is your indispensable partner. A total of 1080 pieces of 16 commonly used screws, 4 types of nuts and washers to meet all your needs from routine maintenance to professional projects. One purchase, long-term benefit, let this value set become a bright star in your toolbox, help you create unlimited possibilities.