DeWalt Wood Knockers II

DeWalt Wood-Knocker concrete inserts are installed onto wooden forms used to support newly poured concrete floor slabs, roof slabs or walls. When the forms are stripped, the color-coded flange is visibly embedded in the concrete surface. The inserts allow the attachment of steel threaded rod or threaded bolts in sizes ranging from 1/4″ to 3/4″ in diameter. The hex impact plate offers resistance to rotation within the concrete as a steel threaded rod or threaded bolt is being installed.

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  • Additional information
  • Uses
  • Features

Additional information


3/8″, 1/2″, 3/8″ & 1/2″

General Applications and Uses

  • Hanging Pipe and Sprinkler Systems.
  • HVAC Ductwork and Strut Channels.
  • Suspending Trapeze and Cable Trays.
  • Mechanical Unit Overhead Utilities.
  • Conduit and Lighting System.
  • Seismic Loading and Cracked Concrete.

Features and Benefits

  • Fast and simple to install, low installed cost.
  • Color coded by size for simple identification.
  • Wood-Knocker can be installed in wood form pours only 3.5" thick.
  • Hex head does not rotate when set.
  • Insert design allows for full thread engagement.
  • All sizes suitable for tension and shear loading.