FISCHER screw anchor 544549 — wall plug set, 4 pcs

The Fischer SXRL FUS frame fixing is a long-shaft wall plug and safety screw system designed for multiple fixings of non-load-bearing assemblies to masonry, concrete and aerated concrete. It uses a two-zone expansion design that spreads loads evenly: in perforated masonry the zones act separately, while in aerated and solid materials they work together as a long expansion element. The safety screw is made of zinc-plated steel and the system is suitable for attaching façade, ceiling and roof substructures made of metal.

Advantages

The SXRL FUS combines a long expansion element with a fixing geometry that applies loads evenly to the base material, reducing the risk of damage to thin-walled substrates. Ribs on the plug prevent rotation during installation, making assembly simpler and more reliable. The system is assessed for use with high load values, allowing safe multiple fixings of non-structural systems in concrete and masonry.

Suitable for

• Fixing metal substructures for façades, ceilings and roofs
• Multiple fixings of non-load-bearing systems in concrete
• Anchoring into perforated masonry and aerated concrete
• Applications requiring a long-shaft anchor in solid building materials

When it may not be suitable

The SXRL FUS is intended for non-structural and multiple fixings; it is not designed for primary load-bearing structural connections. It may not be appropriate where stainless steel or other specific corrosion-resistant fasteners are required for prolonged exposure to aggressive environments.

Key specifications

• Anchor type: long-shaft frame fixing with integrated safety screw
• Material (screw): zinc-plated steel
• Suitable base materials: masonry, perforated masonry, aerated concrete, solid concrete
• Function: multiple fixings of non-load-bearing systems and metal substructures
• Pack quantity: 4 pieces
• Typical length category: long-shaft anchor (120 mm nominal length)

How to use

Drill a hole of the correct diameter and depth for the long-shaft plug, clean the hole of dust, insert the SXRL plug until it sits flush with the surface and then drive in the safety screw using the matching TX40 bit until the plug expands and secures in the base material. Ensure the screw is tightened to the appropriate torque recommended for the base material and the applied load pattern.

What to consider before purchase

• Confirm the correct anchor length and diameter for the substrate and the thickness of the fixture
• Check suitability for the specific base material (perforated masonry vs. solid concrete vs. aerated concrete)
• Determine whether zinc-plated steel fasteners meet corrosion-resistance requirements for your environment
• Ensure the pack quantity and screw length match your project needs

Usage recommendations

Use the SXRL FUS with the specified hexagon head screw and TX40 bit. Clean drilled holes before insertion, follow recommended drilling diameters and embedment depths for each base material, and apply the correct tightening torque to achieve reliable expansion without over-stressing the substrate.