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wej-it Hollo Set™ Drop-In Anchors Anchor Length (in.) 1-5/16

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This anchor is an internally threaded, flush mount expansion anchor designed for use in hollow and solid base materials. In hollow concrete block and precast hollow core plank, the outer wall is generally 1-1/2" thick. When a hole is drilled into the material, there is often spalling on the back side of the wall that
can decrease the wall thickness to less than 1" thick. The Hollo Set anchor will still provide high performance in these altered applications, unlike similar products.

Drill Bit Dia. (in.): 5/8

Thread Size (UNC) 3/8-16


  • Hollow-Core, Precast, and Post-Tension Slabs
  • Solid Base Materials

    Internal Thread

    • 1/4" -1/2" UNC Coarse Thread


    • Zamac Alloy Body
    • Zinc-Plated Heat-Treated Carbon Steel Cone

      Setting Tools Sold Separately