Correct installation of metal expansion screws

When installing metal expansion screws, generally follow the following steps: 1. Select the appropriate size and type of metal expansion screws based on the material and load requirements. 2. Use a suitable tool, such as an electric drill and a metal drill bit, to drill a hole matching the diameter of the expansion screw. The depth of the hole should be slightly deeper than the length of the expansion screw. 3. Clean the impurities and debris in the hole to ensure that the hole is clean. 4. Insert the metal expansion screw into the hole, ensuring that the exposed part of the screw remains on the surface of the material. 5. Use a screwdriver or wrench to turn the screw until it is fully inserted into the hole. At the same time, the expansion screw will expand in the hole, providing better holding force. 6. Finally, tighten the screws with a screwdriver or wrench to ensure that the metal expansion screws are securely attached to the material. It should be noted that the holes and screws need to be kept clean during the installation of metal expansion screws to ensure the smooth installation and fixing effect of the screws. In addition, according to the specific material and load requirements, select the appropriate metal expansion screw type and size to ensure the reliability and durability of the fixed effect.