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fischer Zykon Undercut Anchor FZA

Undercut anchor for pre positioned (FZA bolt version and internally threaded anchor FZA-I) and push through installation (FZA-D bolt version). A cylindrical conical hole with an undercut is produced with the drill bit FZUB in one work process.

When setting the anchor, the anchor sleeve is driven over the cone with a hammer (or setting tool) and fills the undercut hole with a positive fit. Also available: special version FZA ST A4 for hot step irons according to DIN V 1211 GS / 1212 GS. Stainless steel version of the corrosion resistance class III, e.g. A4 for outdoor use and in damp conditions. Highly corrosion-resistant steel of the corrosion resistance clas IV, e.g. 1.4529 for applications in aggressive atmospheres. 

Advantages & Benefits

  • Positive fit in the undercut gives additional safety.
  • Virtually expansion-free operation allows cost-efficient fixing with very small edge distances and axial spacings. Single-step drilling process simultaneously produces the undercut, saving installation time.

Additional Info

  • Suitability: Brick & Solid Materials, Concrete / Dense Stone
  • Installation Type: Pre-Positioned, Push-Through
  • Available In: Zinc Plated, Hot Dipped Galvanized, Stainless Steel

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