Zinc alloy expansion anchor belongs to one kind of metal expansion anchors,made from the superior zinc alloy material. It comprises a tubular shield and a cone nut and pre-assembles together with a strong metal spring band,fastening screw to expand anchor body to anchor and fix the objects when using.The convex shapes on the cone nut prevent the anchor body turning or moving in the hole during expansion.The rust-proof and anti-corrosion feature of them are better than the common zinc plating.
Group of Zinc Alloy Expansion Anchors
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