Aluminum Sign Stiffeners

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Manufactured with high-quality stainless steel and aluminum. Sign stiffeners mount to flat sheet sign blanks or panels.

Fasten with mechanical fasteners or 3M™ VHB (very high bond) tape for a clean look with no bolt head and no hardware (sold separately). Sign stiffeners offer proper support for the sign blanks.

  • Molded channels accept stainless steel clamps, which fasten the sign to the post (search universal channel clamp)
  • Designed to meet AASHTO standard specifications for highway signs, luminaries and traffic signs

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