Solar Mounting System Foundation Anti - Corrosion Ground Screw Piles 1800L*76Dmm Hot Dipped Galvanized Spiral Shape Our ground screws are installed within a few minutes, there is no waiting time, and can be used immediately and can withstand pressure, and the ground is restored to its original state by simply unscrewing the device. The ground screws can be reused and can be relocated as many times as necessary. Product Feature: 1. long lifetime. 2. subjected to strict quality