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3/4" Double Expansion Anchor, 10/Box

$54.20 per Box of 10
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   Availability: In Stock / Ships Today



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Products Features
  • CORROSION RESISTANT​ ​BODY: Anchor body can be used in atmospheres where moisture may be present
  • EXPANDS THE WHOLE LENGTH OF ANCHOR: Performs well in base material of questionable strength
  • INTERNAL THREADS: Allows for unbolting​ ​for non-permanent fastening applications
  • NATIONAL COARSE THREADS: Bolts that are required are the most common type available and easily found for purchase
  • EACH DIAMETER COMES IN ONE LENGTH: Selection is simple process of picking a diameter and then choosing the anchor
Products specifications
Bit Size 1-1/4"
Minimum Embedment 3-15/16"
Thread Type 3/4" - 10
2000 PSI Concrete - Pull-Out (lbs.) * 4487
Type Female
Diameter 3/4"
Length 3-15/16"
Material Zamac
Environment Moist
Box Qty 10
Minimum Spacing 12-1/2"
Minimum Edge Distance 6-1/4"
Minimum Fixture Hole Diameter (In Place) 1-3/8"
Minimum Fixture Hole Diameter (Hole Spotted) 3/4"
Maximum Torque 60 ft./lbs.
Inside Anchor Diameter-Bolt Diameter 3/4"
Outside Anchor Diameter 1-1/4"
Length Measurement End to End
Bolt Length Fixture Thickness + Embedment Depth
Brand Name CONFAST®
Installation Video
Installing a 3/4" Double Expansion Anchor
  1. Drill a 1-1/4" hole into the concrete using a carbide-tipped bit that meets ANSI Standards B212.15.
  2. The depth of the hole can be deeper or equal to the minimum embedment depth of 3-15/16" which is equal to the length of the anchor .
  3. Clean the hole with a wire brush, vacuum, compressed air, or a blow-out bulb.
  4. Insert the anchor with its threaded end first into the hole.
  5. Place the fixture over the 3/4" Double Expansion Anchor, insert a 3/4" diameter bolt through the fixture and into the 3/4" Double Expansion Anchor.
  6. Use a wrench to turn the anchor clockwise until tight or maximum torque value 60 ft. lbs. is reached.
  7. Always use proper personal protective equipment per manufacturer's and OSHA instructions.

Application Pictures
3/4" double expansion anchor - block - water pipe
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* The figures above indicate average ultimate tension and shear failure values. A safety factor of 4:1 or 25% of ultimate value is generally accepted as a safe working load. Reference should always be made to applicable codes.

* The bits are recommended by diameter and may not necessarily be the length needed for your application. Please make sure the usable length will work for your application. *

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