Unifix Thunderbolt Masonry Anchor (2 Products)

The one and only Thunderbolt is the original self-tapping anchor with the power to be used on a whole range of construction materials, including concrete, stone, brick and block. The threaded anchor and self-tapping action allows for safe anchorage, with the substrate becoming the nut to the bolt - applying a tried and tested method for metals and wood to a broader selection of material
  • 1. Simply drill a hole the same size as the Thunderbolt into the material. Ensure the hole is a little deeper than the bolt to allow for dust - see technical info
  • 2. Remove any loose dust from the hole
  • 3. Screw in the Thunderbolt with a socket wrench. Apply a slight downward pressure to start the self-tapping action, as you would with a woodscrew
  • 4. Tighten the Thunderbolt to secure the fixture in place
  • 5. Job done

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