Screw anchor FISCHER 532657 — anchor/plug set, pack of 6

The fischer expansion plug S is a proven classic for secure mechanical fixings in concrete and solid masonry. Made entirely from high-quality nylon, the plug is designed for robustness during installation and provides long-term retention. Its two-direction expansion can be oriented by turning the plug so that expansion forces run parallel to the material edge, helping to avoid spalling when fixing close to edges. Objects can be fastened with wood or chipboard screws.

Advantages

The nylon construction ensures resilience during insertion and stable holding power over time. Two-direction expansion allows controlled transfer of forces along the building material and reduces the risk of damage near edges. The rimless design and push-in installation make the plug easy to place, while the anti-rotation lock prevents the plug from turning in the drill hole for a safer installation.

Suitable for

• Fixing fixtures in concrete
• Anchoring in solid masonry (brick, stone)
• Applications requiring edge-near fixings where spalling must be minimised
• Fastening with wood or chipboard screws

When it may not be suitable

The expansion plug S is intended for use in solid base materials; it is not designed for use in hollow or perforated masonry where specific hollow-wall anchors are required. For applications needing very high load capacities or use in soft, friable substrates, specialist anchors or chemical fixing systems may be more appropriate.

Key specifications

• Material: high-quality nylon
• Expansion type: two-directional expansion
• Design: rimless plug with anti-rotation lock
• Recommended screw type: wood or chipboard screws
• Typical use: concrete and solid masonry
• Pack quantity: 6 pieces

How to use

Drill a hole of the correct diameter and depth for the chosen plug size, clean the hole of dust, then insert the rimless plug by pushing it in until flush with the surface. Turn the plug if needed to align the expansion direction parallel to the material edge for edge-near fixings. Insert the appropriate wood or chipboard screw and tighten to engage expansion and secure the fixture. Follow screw manufacturer torque recommendations to avoid over-tightening.

What to consider before purchase

• Ensure the plug size matches the screw diameter and the drilled hole.
• Confirm the base material is solid concrete or solid masonry.
• Check the required load capacity and choose a suitable fixing system if higher loads are expected.
• Verify the pack quantity meets your project needs.

Usage recommendations

For installations near edges, rotate the plug so that its expansion direction runs parallel to the edge to reduce the risk of spalling. Clean drill holes of dust before insertion and use appropriate screw lengths to ensure full engagement of the plug.