Expansion anchor Fischer 568004 20 mm Nylon 200 pcs

Fischer 568004 is a nylon expansion anchor with a 4 mm diameter and 20 mm length supplied in a pack of 200 pieces. Designed for a wide range of building materials including autoclaved aerated concrete, brick, concrete, gypsum fibre board and masonry, this plug provides reliable anchoring for fittings and fixtures. The product requires a 4 mm drill hole and is compatible with wood, chipboard and stud screws; the required screw length equals plug length + fixture thickness + screw diameter.

Advantages

The 4-way expansion ensures efficient force transmission into solid and perforated building materials, delivering high holding values. Special fixing wings pre-fix the screw so it remains in place during setting, which frees both hands for installation tasks. An expansion-free plug neck prevents expansion forces on the material surface while screwing, reducing the risk of damage to tiles and plaster. The plug’s shape allows easy insertion into the drill hole with a few light hammer blows, while a pronounced edge prevents the plug from slipping deeper into the hole. A noticeable tightening torque signals proper installation and helps avoid overtightening. Made from high-quality nylon, the plug ensures a durable hold in many base materials.

Suitable for

• Autoclaved aerated concrete (AAC)
• Solid and perforated brick
• Concrete and masonry
• Gypsum fibre board
• Fixing with wood, chipboard and stud screws

Key specifications

• Brand: FISCHER
• MPN: 568004
• EAN: 4048962480801
• Material: Nylon
• Plug diameter: 4 mm
• Plug length: 20 mm
• Drill hole diameter: 4 mm
• Quantity: 200 pieces per pack

How to use

Drill a hole with the specified 4 mm drill bit to the correct depth. Clean the hole of dust and debris, then insert the Fischer 568004 plug until the pronounced edge sits flush with the surface; a few light hammer blows can assist insertion. Position the fixture and select a screw length equal to plug length + fixture thickness + screw diameter. Insert the screw — the fixing wings will fold inward to hold the screw during setting — and tighten until you feel the characteristic tightening torque indicating secure anchorage. The anchor expands in four directions to lock into the base material.

Usage recommendations

Use the plugs only in materials listed under suitable for. For overhead installations, ensure the pre-fixation function holds the screw before final tightening. Do not use in hollow cavities without solid backing. Select screws appropriate for the fixture and environment; verify drill diameter and embedment depth before installation.