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CONFAST LDC384 3/8'' x 4'' Concrete Screw

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$36 USD
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CONFAST LDC384 3/8" x 4" Zinc Plated Large Diameter Concrete Screw for Anchoring to Masonry, Brick or Block (25 per Box)

3/8" x 4" zinc-plated concrete screw designed to cut its own thread in masonry. Easy installation with serrated hex washer head. One piece design; compatible with ANSI standard 3/8" concrete bits. Insight: customers praise its holding power and value for money

Highlights

  • self-threading in concrete
  • easy installation and low torque
  • secure when properly installed

Pros

  • cuts its own thread into concrete
  • low torque for easy installation
  • serrated hex washer head to prevent back-out
  • single piece design, no assembly
  • 3/8" bit compatibility

Cons

  • some customers report spinning without gripping
  • not rated for outdoor/wet/damp environments

Best For

  • anchoring safes to masonry
  • securing fixtures to brick or block
  • attaching wood to masonry
  • in masonry projects requiring self-threading screws
  • installing anchors in new construction concrete

Features

  • Cuts its own thread into concrete when inserted into a properly drilled hole
  • Low torque threads enable easier installation
  • Serrated hex washer head helps prevent back-out
  • Single piece design requires no assembly
  • Designed for use with ANSI standard 3/8" concrete bit; matches anchor diameter

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