3~3.5mm Thickness Helical Screw Piles Steel Foundation Ground Screw Piles Solar Arrays PV Racking Ground Mounts In many applications, Ground Screw Piles is the preferred foundation , such as Photovoltaic Solar Farm construction, Timber-frame Housing, Timber Decking, Street Light and Fence construction, Temporary Site Accommodation, Bill Board/Advertising Signs and many more applications. Ground pile, made of Q235 (Hot Galvanizing), can guarantee long service life due to high