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INDEX Concrete Bolts

INDEX Concrete Bolts

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Concrete screw anchor with silver ruspert coating and hexagonal head.
INDEX Concrete Bolts

Index Concrete Bolts are direct fixing anchors for concrete. The silver ruspert coating gives it a high resistance to corrosion; it is tested to withstand 500 - 1000 hours in a salt spray chamber. Its triple bevel thread eases and improves the installation on all type of base materials without the need for a nail. Its special tip with toothed edges improves assembly. They come with hexagonal head screws.


  • Special SPAX CUT point: precision placement, allows screwing in without pre-drilling (wood-dependent), effectively reduces splitting and bulging of the material
  • Small 75° milling head: ensures flush countersinking
  • Partial thread: firm tightening of the upper wood layer



  • ‍Extra high corrosion resistance
  • Hexagonal head
  • Special tip with toothed edges
  • Triple bevel thread



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