[Durable material]: Made of carbon steel, with high hardness and good corrosion resistance, the material has stable performance, high temperature resistance, and can also be used in humid environments, suitable for long-term indoor and outdoor use.[Features]: Hexagon socket head fixed flat head screw has deep thread, uniform force, firm and non-slip, good locking effect, small size can be well hidden without affecting the beauty of the project.[Easy to use]: According to the thread size and hole depth, select the corresponding set screw thread diameter and length, and use a hexagonal wrench to drive the screw into the mounting threaded hole easily .
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