Fastener Products

Ground Screw Installation Method
D-Earth Screw

D-Earth Screw DES-R76

  • High corrosion resistant hot-dip galvanizing (plating thickness equivalent to HDZ55).
  • Rigid pipe wall thickness (3.6mm or more).
  • High-strength spiral shape (optimized pitch, thickness and tip shape).
［Application］ Solar Energy Equipment / Temporary Structure

We provide detailed support services such as inspection of installation sites, performance verification, etc.

●Ground strength inspection
The Swedish sounding test (JIS A 1221: 2013) is used to confirm the strength of the ground where the installation is planned.

●Performance check
Installers can check the performance at the installation location using the designated small testing machine “Techno Tester DT-50TCL”. Installers can easily perform a design load confirmation test in advance to verify the quality for formal installation.

●Construction technology examination certificate
The direct earth method has obtained a construction technology examination certificate (examination organization, Better Living: BL examination certificate-014).

D-Earth Screw’s reliable quality can assure stable installation

The product quality and material performance of the screw body and adjustment plate have been confirmed by assessment of the factory and material testing by an inspection body (Better Living).

D-Earth Screws can be easily drilled into the ground, greatly reducing installation time

After the installation of the D-Earth screw, the mount and temporary construction materials can be installed immediately.

Easy to restore to the original situation
Consideration for the surrounding environment during work

【Removing concrete foundation】

D-Earth Screw specification

Open chart in PDF

Unit：mm
Item no. Pipe part Spiral part Flange part Distinguishing color
 L  t  D  Ls  Ds  P  Df  tf
DES-R76x1300-M24 1,300 3.6 76 1,000 96 60 180 10 Blue
DES-R76x1600-M24 1,600 3.75 76 1,200 96 60 180 10 Black