Installation step 1: First, determine the safe location of the fitness equipment in the community, use the drill corresponding to the expansion screw, and use an impact drill to drill holes on the ground to a depth greater than or equal to the length of the expansion screw. Installation Step 2: Screw the nut of the expansion screw onto the flat surface of the screw, use a hammer of no less than 5 pounds to drive the expansion screw into the drilling hole, and tighten the screw with a corresponding size wrench to complete the installation. If you are worried about theft during the installation of expansion screws, you can use a welding machine to weld the screws or use concrete to seal the screw heads to prevent theft. Expansion screw installation method and stainless steel anti-theft cover are also optional.