Masonry Anchors
Double Expansion Anchors

Double Expansion Anchors

The Double Expansion Shield is internally threaded to be used with a machine bolt. It installs flush with the surface and is ideal for static or vibratory loads. The anchor’s expansion takes place throughout its entire body, thereby providing an exceptional holding power. Note: Not recommended for overhead sprinkler systems in California. Available in 1/4", 5/16”, 3/8”, 1/2", 5/8” and 3/4".
Features and benefits
  • Internally threaded for machine bolt
  • Installs flush with surface
  • The expansion takes place at the bottom half of the body
  • Good for static or vibratory loads
  • Corrosion resistant
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Installation Tools
Drill Wrench
Mounting Surface
Brick Concrete
Applications
  • Electrical boxes
  • Railings
  • Sewage pipes
Installation Guide
1. Drill a pilot hole into material.
2. Insert the Double Expansion Shield into material.
3. Insert bolt through object you need to afix and insert into the Double Expansion Shield.
4. Using a wrench, screw clockwise until there is a firm resistance.
Technical Specifications
Double Expansion Anchors
SKUDescription Anchors Per Pack Safe Load Weight (Ibs) Drill size Min embedment Packaging
310CDOUBLE EXPANSION SHIELDS 1/4" (X50) 50 396 1-5/16'' DOUBLE EXPANSION SHIELDS 1/4" (X50)
311CDOUBLE EXPANSION SHIELDS 5/16" (X50) 50 510 5/8" 1-1/2'' DOUBLE EXPANSION SHIELDS 5/16" (X50)
312CDOUBLE EXPANSION SHIELDS 3/8" (X50) 50 898 3/4" 1-1/2'' DOUBLE EXPANSION SHIELDS 3/8" (X50)
313CDOUBLE EXPANSION SHIELDS 1/2" (X25) 25 1336 2-1/16'' DOUBLE EXPANSION SHIELDS 1/2" (X25)
314CDOUBLE EXPANSION SHIELDS 5/8" (X20) 20 2678 1" 2-5/8'' DOUBLE EXPANSION SHIELDS 5/8" (X20)
315CDOUBLE EXPANSION SHIELDS 3/4" (X10) 10 3641 1-1/4" DOUBLE EXPANSION SHIELDS 3/4" (X10)