PandaSolar PD-GS01 solar ground screw is designed to fix the bracket to the ground.The solar ground screw is made of Q235 material, and the surface is hot-dip galvanized.   Name: HDG Ground Screw  Brand: PandaSolar Item: PD-GS01 Product Origin: Fujian, China Material:  Q235B, Surface Treatment: hot-dip galvanized Warranty: 12years Duration: 25years Shipping Port: XiaMen Port Lead Time: 7-15 days Max Wind Speed: 60m/s Max Snow Load: 1.4kn/㎡ Standard:AS/NZS1170/JISC8955:2017.