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Screw Bolts

Screw Bolts

The Screwbolt system is based on a completely new fixing concept for anchoring into construction materials.  Using threads in metals is standard practice within the engineering industry, as is using woodscrews to cut their thread into wood in the construction industry.

The development of this self tapping anchor is for use in construction materials, such as concrete, stone, brick, block and many more. Thereby, a tried and tested method of fixing for metals and wood to construction materials is applied.

Designed to give optimum grip within the various substrates, whilst reducing insertion torque to a minimum. Using standard size hammer or percussion drills to drill the hole into which the Screwbolt is to be fixed. It cuts its own thread into the substrate as it is screwed in. This self tapping action enables a positive and safe anchorage to be achieved, with the substrate becoming the nut to the Screwbolt. Because the anchor cuts its own thread, a safe anchorage is achieved without the need of high tightening forces.

The Screwbolt exerts no expansion pressure and can be used close to edges without damaging the base material and it can be removed and refixed into the same hole, providing the thread is aligned correctly.

The preload applied serves only to secure the component being fixed and should not exceed the maximum torque recommended.

Screwbolts are designed for medium to heavy duty applications in solid concrete of 25MPa or greater, offering a variety of head types and finishes. 

Head Types:

  • Hex
  • Hex Flanged
  • Countersunk
  • Eye Bolt
  • Swag Hook
  • Tie Down

Material Coating:

  • Yellow Zinc Plated
  • Galvanised

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