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BigTwist Headed 8mm Helical Fixings

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£7.08 Incl. VAT
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These BigTwist Helical Fixings are perfect for securing structural 6mm plywood composite insulation. This hammer-driven fixing secures structural plywood composite insulation & OSB boards to flat roofs and is suitable for panels between 96mm and 126mm.

To guarantee the product's safety qualities, tension is induced through the helical section by the twisting motion in the manufacturing process. This process ensures that any impurities in the raw material are detected, and any inferior materials are discarded.

Features & Benefits: BigTwist Headed 8mm Helical Fixings

  • No drilling or need for screws
  • Quick installation
  • Rotates whilst being driven in, eliminating the risk of splitting timber
  • Unique one-piece stress free fixing
  • Large 20mm head
  • High performance
  • Minimal compression of insulation
  • Improved thermal bridging
  • 8.8 High Tensile Steel, Zinc Plated and Passivated


Length 135mm


Material Zinc plated high tensile steel Diameter 8mm Pack Size Pack of 25
Pack of 300
Pack of 500
Fixing Type BigTwist - 20mm Headed fixing


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3.5 / 5 2 reviews
Billy Dowell
Reviewing BigTwist Headed Helical Fixings 220mm x 8mm - Pack of 300
18th January 2021
We were dissatisfied with this product it was so flimsy and weak it bent in impact we had to drill Pilot holes in order to get it to work
Reviewing BigTwist Headed Helical Fixings 195mm x 8mm - Pack of 300
10th April 2020
Great fixing does exactly what you want
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BigTwist Headed 8mm Helical Fixings

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