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All Categories > Mechanical Anchors > Rod Hanging Systems > Wood-Knocker™ > View Items  
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Wood-Knocker Concrete Inserts are installed onto wooden forms used to support a newly poured concrete floor slabs, roof slabs or walls. When the forms are stripped, the color-coded flange is easily seen embedded in the concrete surface allowing attachment of steel threaded rod or threaded bolts in sizes ranging from 1/4" to 3/4" in diameter. The unique six-sided impact plate offers resistance to rotation within the concrete as a steel threaded rod or threaded bolt is being installed.

1/2" and 3/4" coil thread Wood-Knockers are available upon request for Framing Applications.

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Item #

Item Name



7550 1/4" Brown Wood Knocker™ Brown 1/4 in
7552 3/8" Green Wood Knocker™ Green 3/8 in
7554 1/2" Yellow Wood Knocker™ Yellow 1/2 in
7556 5/8" Red Wood Knocker™ Red 5/8 in
7558 3/4" Purple Wood Knocker™ Purple 3/4 in
7567 1/2" Coil Thread Wood Knocker™ Yellow 1/2 in
7568 3/4" Coil Thread Wood Knocker™ Purple 3/4 in
  Results 1 - 7 of 7 1