Galvanized Earth Ground Screw Anchor Solar Foundation Installation Helical Pile The Galvanized Earth Ground Screw Anchor is a heavy-duty helical pile designed for solar foundation installation where deep, reliable embedment is essential. The larger 89 mm shaft and wide helix deliver the pull-out resistance needed for large arrays, carports and structures exposed to high wind uplift, while the galvanized finish protects the pile through decades of ground contact. As an