Expansion anchor Fischer DUOPOWER 8 x 65

The Fischer DUOPOWER 8 x 65 is a versatile expansion anchor designed for secure fastening in a variety of base materials. With a length of 65 mm and a drill hole diameter of 8 mm, this plug combines a two-component design to provide reliable hold in concrete, masonry, and many hollow or mixed substrates. The preformed rim on the plug head prevents the anchor from slipping into the drill hole and helps ensure correct positioning during installation.

Advantages

The DUOPOWER combines a grey high‑quality nylon component that automatically activates the optimal function for the substrate (expansion, folding or knotting) with a red component whose expansion wings support secure anchoring. This two-part construction provides very good load values across different materials. The design allows easy screwing in and correct tightening without risk of over‑tightening the screw, improving installation reliability.

Suitable for

• Concrete and solid masonry
• Hollow blocks and light-weight concrete
• Plasterboard or mixed substrates (with appropriate screw)
• Interior and exterior general fastening tasks (shelves, brackets, fixtures)

Key specifications

• Product: Expansion anchor Fischer DUOPOWER 8 x 65
• Brand: FISCHER
• Length: 65 mm
• Drill hole diameter: 8 mm
• Minimum drill hole depth: 75 mm
• Packaging: box
• MPN: 538251
• EAN: 4048962262186

How to use

Drill a hole with an 8 mm drill bit to the required depth (minimum 75 mm). Clean the hole of dust and debris. Insert the DUOPOWER anchor so the preformed rim rests against the surface. Place the fixture and screw in the appropriate screw; the grey nylon component will adapt to the substrate by expanding, folding or forming a knot while the red expansion wings provide additional support. Tighten the screw until the fixture is secure—avoid excessive force that could damage the anchor or substrate.

Usage recommendations

Use screws of suitable length and diameter for the intended load and material. For high loads or critical applications consult manufacturer technical data or a structural engineer. For exterior use, select corrosion‑resistant screws.