Screw/Bolt Fischer 564789 50 pcs

The fischer DuoPower is an intelligent two-component universal plug designed for a wide range of fixing tasks across different building materials. It combines three product functions—folding, expanding and knotting—to adapt automatically to the substrate and transfer high loads. Certain DuoPower dimensions have a European Technical Assessment (ETA) for tested safety in concrete and masonry. The DuoPower in larger lengths (6 x 50, 8 x 65 and 10 x 80) provides increased anchorage depth, making it especially suitable for hollow building materials, aerated concrete and plaster with cavities.

Advantages

The DuoPower plug adjusts itself to the building material, offering universal applicability with one product. Its three functions—folding, expanding and knotting—ensure secure load transfer, while clear tactile feedback when screwing enhances installation safety. ETA-certified sizes provide verified performance for safety-relevant fixings in concrete and masonry.

Suitable for

• Fixings in solid masonry and concrete
• Anchoring in hollow building materials
• Installations in aerated concrete (porous lightweight concrete)
• Plaster and applications with bridge cavities
• General DIY and construction fastening tasks

Key specifications

• Product type: 2-component universal plug (DuoPower)
• Functions: folding, expanding, knotting
• ETA: available for certain dimensions (see load table)
• Suitable lengths highlighted: 6 x 50, 8 x 65, 10 x 80 for deeper anchorage
• Pack contents: 50 pieces (Screw/Bolt Fischer 564789 pack)
• Brand: FISCHER; MPN: 564789; EAN: 4048962463392

How to use

Drill a hole with the correct drill bit for the chosen DuoPower size, clean the hole of dust and insert the plug flush with the surface. Position the fixture and drive the appropriate screw or bolt into the plug; the DuoPower will adapt to the material by folding, expanding or knotting to form a secure anchorage. Ensure the screw length and diameter are suitable for the plug and the load requirements.

Usage recommendations

Select DuoPower sizes with ETA for safety-relevant fixings in concrete and masonry. For hollow materials, aerated concrete or bridge plaster, prefer the longer versions (6 x 50, 8 x 65, 10 x 80) to achieve sufficient anchorage depth. Always use the recommended drill bit size and clean holes before installation to ensure proper function.