External thread nominal diameter equals the diameter of the anchor body. Construction is possible from the top of the attachment.Anchor extension is possible by casting the core rod. A driving bar is not required.For concrete. Mounting in construction, electrical, plumbing, signboards, railings, and chair can also be done.Nominal Designation of Thread:M8Total Length (mm):40Screw Length (mm):20Max Attachment Thickness (mm):3Pilot Hole Diameter (mm):8.5Maximum Tensile Load (kN):5.0Buried Depth