Thunderbolt Screws

Concrete Hex head Screw


6mm are Hex Flange Head / 8mm 10mm 12mm are Hex Head


The ideal fixing for heavy duty anchoring into brick, stone, wood concrete and concrete block. 


The Thunderbolt screw is an extremely versatile anchor screw that performs well in a wide variety of building materials including brick, stone, wood, concrete and concrete block. 

You no longer need the old fashioned method such as through bolts, shield, sleeve and drop-in anchors. Thunderbolt screws make anchoring a much more efficient  process, greatly increasing the speed of installation.

Key Features

  • High-Low parallel threads for ease of insertion and high pull-out values
  • Removable & adjustable non-expansion through fixing
  • Unique concave thread configuration
  • Hex head for increased clamping capabilities and high torque capability
  • 130mm, 150mm & 200mm screws are partially threaded
All steel, non-flammable fixing conforming to BS 7671 standard's 18th edition, which requires wiring systems to be supported by materials which are unlikely to prematurely collapse in the event of a fire.

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