FISCHER anchor Fischer Thermax 8/140 M6 Steel Zinc/Nylon 8 mm thermal insulation fixing

FISCHER Thermax 8/140 M6 is a mechanical anchor designed for fastening 8 mm thermal insulation and façade components. The system pairs a steel M6 threaded stud with a zinc-plated steel sleeve and an integrated nylon thermal break to reduce thermal bridging. It is intended for use in masonry and concrete substrates and provides stable load transfer for insulation panels and lightweight façade elements while supporting improved thermal performance of the building envelope.

Advantages

The anchor combines the strength of a steel threaded stud with a corrosion-resistant zinc-plated sleeve and a nylon section that separates the metallic parts to limit heat flow. This combination ensures mechanical reliability in load-bearing applications while reducing thermal conductivity through the fixing point. Installation is straightforward: the anchor expands in the base material to create a secure hold and the external geometry is suitable for thin insulation layers. The product is designed to offer predictable performance in common masonry and concrete substrates and to integrate with standard façade installation workflows.

Suitable for

• Fixing 8 mm thermal insulation boards to concrete and masonry
• Securing lightweight façade panels and claddings
• Anchoring through insulation layers where thermal bridging must be minimized
• Applications requiring mechanical load transfer combined with thermal separation

Key specifications

• Anchor type: mechanical insulated anchor with threaded stud
• Nominal insulation thickness compatibility: 8 mm
• Thread size: M6 steel stud
• Sleeve material: zinc-plated steel
• Thermal break: nylon section to reduce thermal bridging
• Embedded length: 140 mm (overall system length for typical use)
• Recommended substrates: concrete, solid masonry
• Typical use: insulation and façade panel fixation

How to use

Drill a hole of the specified diameter and depth suitable for the anchor into the substrate, clean the hole of dust and debris, and insert the anchor so the sleeve aligns with the insulation layer. Tighten the M6 threaded stud to expand the sleeve in the base material, ensuring the anchor is set and the insulation panel is held flush to the substrate. Observe manufacturer-recommended drill diameter and embedment depth for the substrate. Where several anchors are used, maintain the specified spacing pattern to achieve the required mechanical performance.

Usage recommendations

Verify substrate condition and load requirements before installation. Use anchors of appropriate length for combined insulation and substrate thickness, and follow relevant building regulations and guidelines for thermal insulation fixings. For through-insulation applications, ensure the thermal break remains correctly positioned to limit heat transfer. When installing in hollow or perforated masonry, consult the appropriate design guidance or use alternative approved fixing methods.