5/16" x 3 1/2" Concrete Expansion Anchor, grade 316 SS - Exterior

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0.31 (in)
0.31 (in)
3.50 (in)
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CLEARVIEW® - 5/16" x 3-1/2" Concrete Expansion Anchor

These 5/16" x 3-1/2" stainless steel concrete expansion anchors are used to attach Cascadia posts to the mounting surface.


  • Material: Marine grade 316 stainless steel for superior corrosion resistance.
  • Dimensions (D x L): 5/16" x 3-1/2".
  • Application: Attaches a stainless steel post for a railing system under the Clearview® brand to concrete.


  • Create a Beautiful and Distinctive Look: Can be used with other off-the-shelf components to distinctively decorate decks, patios, stairs, balconies, porches, and verandas.
  • Save Time and Money: Eliminates the need for consultation, custom design work, and expensive skilled labor.
  • Reduce Waste and Inefficiency: Marine grade 316 stainless steel is 100% recyclable and reduces future maintenance by resisting corrosion.
  • Easy Do-It-Yourself (DIY) Installation: Simple design with educational How-To and FAQ resources that include DIY instructions and DIY videos to facilitate installation.

Cascadia Railing System Installation Instructions

Video Resources