Expansion anchor Fischer DUOPOWER 5 x 25 S LD

The Fischer DUOPOWER 5 x 25 S LD is a dual-component expansion anchor designed to provide secure fastening in a wide range of base materials. With a 5 mm drill diameter and 25 mm length, this pack of 50 metal anchors is suitable for both professional and DIY applications where reliable load-bearing performance is required. The design combines two materials to activate the optimal anchoring function—expansion, folding, or knotting—depending on the substrate.

Advantages

The two-component system uses a grey nylon element that automatically engages the correct anchoring mechanism for the building material, while the red expansion wings support reliable expansion and add extra security. A preshaped edge on the plug head prevents the anchor from slipping into the drilled hole, and the supplied screws are matched to the DUOPOWER plug for easy screwing and correct tightening without risk of over-tightening.

Suitable for

• Concrete
• Solid masonry
• Hollow or perforated masonry where folding or knotting action is needed
• General interior and exterior fastening tasks with 5 mm drill holes

Key specifications

• Product: Fischer DUOPOWER 5 x 25 S LD
• Drill hole diameter: 5 mm
• Length: 25 mm
• Pack quantity: 50 pieces
• Brand: FISCHER
• MPN: 535458
• EAN: 4048962239874

How to use

Drill a 5 mm hole to the required depth, clean the hole from dust, insert the DUOPOWER plug until the preshaped head rests on the surface, and drive in the matched screw. Tighten the screw until the anchor engages—expanding, folding, or knotting according to the substrate—ensuring a secure fit without over-tightening.

Usage recommendations

Use appropriate drill bits and cleaning tools for the substrate, choose the correct screw length for the fixture thickness, and follow load tables or manufacturer guidance when planning load-bearing applications.