Ground screw, earth screw, screw anchor, earth anchor or pier anchor – this simple and effective foundation has many names. ... Our ground screws are the best solution for supporting wooden decks, sheds, greenhouses, containers, carports or other structures such as flagpoles, signs or fences. In general, the ground screw is made of Q235 steel and surface is galvanized. We also can produce other material, if customer has special requirements.

