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Bi-Metal Fasteners: The corrosion resistance of 300 series stainless steel in a threaded concrete anchor

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Owners, architects and, design engineers expect longer life cycles from buildings. Extended warranties and use of more sustainable materials add up to greater expectations for performance – from structural integrity to the purely aesthetic – of all building components.

Features and Benefits

  • Bi-metal technology – 300 (18-8) stainless steel head and shank
  • Fused and hardened steel tapping threads and gimlet point
  • Alternating, hi-low notched thread profile
  • Silver-colored Stalgard® GB coating
  • Hex washer head and TrimFit® flat head designs


  • Outstanding corrosion resistance
  • Long service life
  • High strength and ductility
  • Offers greater galvanic compatibility in dissimilar metal applications involving aluminum
  • Thread profile provides quick cutting and stability during installations
  • High in-place value over life of structures