Adjustable Helix Ground Screw, Adjustable Helix Ground Pole Anchor Product Description Wanhos Solar Helix Ground Screw is the new foundation type for PV ground mounting system. The application of this solution is widely. It can minimize the impact on the environment; and it is simple and fast on installation,which saves installation time greatly,save installation costs. Wanhos Solar Helix Ground Screw has a unique Oblique spiral design,which can greatly ensure the stability and robustness when withstanding static load.