Wall plug FISCHER DuoPower 6x30, universal dowel for solid and hollow materials

FISCHER DuoPower 6x30 is a universal wall plug designed to provide reliable anchoring in both solid and hollow building materials. With a 6 mm diameter and 30 mm length, this dowel features the DuoPower design that automatically adapts to the substrate: it expands in solid masonry and forms claws in hollow blocks to deliver secure load transfer. It is suitable for indoor mounting tasks such as fitting shelves, fixtures, conduit clips and light fittings, offering a versatile fastening solution for a variety of common installation jobs.

Advantages

The DuoPower design ensures adaptive behaviour across different substrates without the need to choose separate plug types for solid or hollow materials. Its 6x30 dimensions provide a compact yet strong anchoring option for light to medium loads. The plug’s shape reduces the risk of slipping and increases contact surface in solid masonry while producing claw-like engagement in hollow blocks for improved stability. Installation is straightforward and compatible with standard 6 mm drill bits and screws, making it practical for both professional installers and DIY users.

Suitable for

• Mounting shelves and cabinets on solid or hollow walls
• Fixing light fittings, picture rails and curtain rails
• Securing conduit clips, cable clips and small trunking
• Attaching lightweight fixtures such as towel rails, hooks and small brackets

Key specifications

• Plug type: universal adaptive wall plug (DuoPower principle)
• Nominal diameter: 6 mm
• Length: 30 mm
• Material: high-performance polymer (designed for combination of expansion and claw formation)
• Suitable substrates: solid masonry, concrete, aerated concrete, hollow blocks, gypsum plasterboard
• Recommended screw diameter range: typically compatible with screws designed for 6 mm plugs

How to use

Drill a hole with a 6 mm drill bit to the required depth, clean the hole from dust, insert the DuoPower plug flush with the surface and drive the appropriate screw into the plug. In solid materials the plug will expand to create friction and load-bearing contact; in hollow materials the plug’s segments will fold back to form claws that grip the inside of the cavity. Ensure the chosen screw length provides sufficient engagement without bottoming out and that the drill bit and screw type match the substrate and load requirements.

Recommendations

For best results, select screws and drill bits that correspond to the plug’s 6 mm diameter and the expected load. Pre-test the chosen combination in the specific substrate if the loading is critical, and follow general safety practices such as wearing eye protection while drilling and avoiding over-tightening screws to prevent damage to the plug or substrate.