Ground Anchor 3 x 63 x 0.14in (for 2" SGA) Installation

• Ground screws must be installed in a clockwise rotation and uninstalled in a counter
clockwise rotation.
• During installation the rotation of the ground screw must be accompanied with
appropriate downward pressure (crowd) to advance the screw one thread pitch per
rotation. For example, the thread pitch is 40mm (1 1/2-1 5/8”) on all ICC approved
ground screws. Therefore, the screw should advance downward approximately 40mm
or 1 1/2-1 5/8” per rotation.
If the screw is advancing at a significantly slower rate than the thread pitch there is not
enough downward pressure. This causes the screw to churn (spin without advancing
downward). Churning may cause the load capacity to be reduced or not meet
established correlations. Conversely, if the screw is advancing at a significantly faster
rate than the thread pitch there is too much downward pressure causing the screw to
auger (advance downward like a drill bit vs. allowing the threads to engage the soil).
This also puts undesired torque on the screw. Torque on the screw should not exceed
the maximum torque of the screw as shown in the Tab 3 of the ESR Torque Data. Both
of these errors will be apparent because soil cuttings will rise next to the screw. There
should be no cuttings surfacing around the screw as shown below.