Sesto Fasteners ICCONS Hex Head Screwbolts arranged in a pile.

We've got some great news. Iccons and Sesto Fasteners have added two new sizes to our thunderbolt seismic screw bolt range. The M14 and the M18. As seen is the last article, selected lengths of each diameter screw bolt from our standard range (the ThunderBolt®PRO) are now ETA Approved for crack concrete and Seismic C1 & C2.

Sesto Fasteners ICCONS Seismic screwbolts arranged in a row.

The M14 screw bolt comes in the following lengths:

  • 80mm
  • 100mm
  • 130mm
  • 150mm

The M18 screw bolt comes in the following lengths:

  • 100mm
  • 150mm
  • 170mm
  • 200mm


Sesto Fasteners ICCONS screwbolts.

This new offering offers SESTO Resellers a much wider range of screw bolt diameters compared to other fastener suppliers and therefore more solutions for end users. Being a specialty concrete anchoring supplier, we aim to continue increasing our range of anchoring solutions.

In this age of supply delays and shortages, finding alternatives to specified anchor points can be a real issue. Alternatives can be the difference between work completed on time and on budget. 

Merchants in NZ will range and support these additions, creating acceptance and demand nationally.

Sesto Fasteners ICCONS Thunderbolt bolt box


ICCONS Sesto Fasteners Screwbolt box.

14mm & 18mm Technical Information 

New ETA Approved C1 & C2 Seismic Range Technical Information

ETA - C1 & C2 Approval


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