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Double Expansion Shields are a corrosion resistant anchor that is designed to be used with a machine bolt in concrete, brick, block, and stone. The anchor comes pre-assembled and consists of a zamac alloy anchor body, 2 expansion cones (1 at each end of the anchor), and a wire expanding ring that holds the entire anchor together. The expansion cones are drawn in at each end of the anchor as the machine bolt is tightened into the anchor - ensuring consistent and even expansion along the entire anchor body. Recommended for anchoring into base materials of questionable strength.
Eliminates high stress points that can be detrimental in fastening into materials of medium hardness
Expands fully to provide high gripping power
Ideal for shear loads where joint is subject to side pressure or vibration
Corrosion resistant body
Proposition 65 Information
WARNING: WARNING: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov/proposition-65-warnings