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wej-it Double Expansion Shields Anchors Length (in.) 1-5/8

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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, two expansion cones (one 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.

Drill Bit Dia. (in.): 5/8

Thread Size (UNC): 5/16 - 18


    • Normal Weight Concrete
    • May be suitable for Lightweight Concrete


      • Zamac Alloy