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CONFAST 1/4' (Inside/Screw 1/4' - 20) Double Expansion Anchor (100 per Box)

5.0 (2) Write Review
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$73.89

$ 32 .99 $32.99

In Stock

About this item

  • CORROSION RESISTANT BODY - Anchor body can be used in environments where moisture may be present
  • EXPANDS THE WHOLE LENGTH OF ANCHOR - Excellent performance in base material of questionable strength
  • INTERNAL THREADS - Easy to remove
  • ACCEPTS BOLTS WITH COARSE THREADS - Common type of fastener which is easy to find
  • EVERY DIAMETER AVAILABLE IN ONE LENGTH - Selection simply requires choosing a diameter and then selecting the anchor


Applications
The anchor is made from Zinc Alloy. This anchor is designed for use in Concrete, Block, and Brick.
Environment
The anchor is designed for use in a Moist environment.
Hole Diameter/Bit Diameter
The anchor requires a 1/2" hole to be drilled in the base material (Concrete, Block, and Brick). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill.
Minimum Embedment
The minimum anchor embedment into the concrete is 1-3/8". Therefore, the anchor must be installed so that a minimum of 1-3/8" of the anchor is embedded into the concrete.
Spacing between Anchors
Each anchor must be spaced a minimum distance of 5" from each other when measured center to center.
Edge Distance
It is very important not to install the anchor any closer than 2-1/2" from an unsupported edge of the concrete.


Nell Warnes
Reviewed in the United States on November 8, 2019
This is what I was looking for to mount light to medium weight things to my house's old and brittle brick veneer. The double expansion design spreads the pressure out to lessen the risk of cracking.
:o)
Reviewed in the United States on April 25, 2019
Works great on brittle aged concrete.