Screw anchor FISCHER 544551 – pack of 4 wall plugs for secure fixing

The fischer frame fixing SXRL-T is a long-shank frame anchor designed for multiple non-structural fixings in masonry, concrete and aerated concrete. Supplied together with a matching countersunk head screw with TX drive, the fixing transfers loads via two expansion zones that work together to form a long expansion element in aerated concrete and solid building materials. The screw is zinc-plated steel and the system is intended for internal fittings such as window frames, coat racks, wall cupboards and TV consoles.

Advantages

The SXRL-T provides uniform load distribution into the substrate thanks to its fixing geometry, which reduces the risk of damaging thin-walled or perforated masonry. Its two expansion zones enable reliable anchoring in both perforated and solid materials, while the long expansion element increases versatility across different substrates. Ribs on the plug prevent rotation during installation, making assembly straightforward. The included countersunk head screw with TX drive ensures a flush finish for frame fittings.

Suitable for

• Fixing window and door frames in masonry, concrete and aerated concrete
• Mounting coat racks, wall cupboards and shelving systems
• Securing TV consoles and light to medium-duty internal fixtures
• Multiple non-structural anchor points where even load distribution is required

When it may not be suitable

This frame fixing is intended for non-load-bearing applications; it is not suitable for primary structural connections or where certified structural anchoring is required. It may not be appropriate for very soft or highly crumbly substrates where the base material cannot support expansion pressures.

Key specifications

• Anchor type: long-shank frame fixing with two expansion zones
• Material (anchor): engineered plastic plug with anti-rotation ribs
• Material (screw): zinc-plated steel countersunk head with TX drive
• Typical application length: 100 mm overall anchor length (long-shank design)
• Recommended use: internal fixings for masonry, concrete and aerated concrete

How to use

Drill a hole of the correct diameter and depth for the anchor, clean the hole of dust, insert the SXRL-T plug until flush with the surface and position the frame element. Drive the countersunk head screw with a TX bit until the head sits flush and the anchor expands. Ensure the screw is tightened to a secure fit without over-torquing; follow any project- or manufacturer-specific torque guidance where available.

What to consider before purchase

• Verify substrate type (masonry, concrete, aerated concrete) to confirm compatibility
• Check required anchor length and drill diameter against the frame thickness and fixing depth
• Confirm internal installation suitability and intended load class for non-structural use
• Plan for the number of anchors needed for safe load distribution

Usage recommendations

For best results use with an appropriate TX screwdriver bit, clean drilled holes before insertion, and distribute multiple anchors evenly along frames or fixtures to ensure uniform load transfer into the building material.