FISCHER screw anchor 090933 – wall plug, pack of 2

FISCHER screw anchor 090933 is a zinc-plated steel sleeve anchor with a hexagonal head, supplied as a pack of two. It is set using a through-type installation: when the hex screw is tightened, a cone is drawn into the expansion sleeve, which expands against the hole wall and clamps the fixture to the substrate. A black plastic ring prevents rotation during setting and reduces torque slippage. The anchor is suitable for fixing consoles, steel constructions and cable trays in cracked and non-cracked concrete.

Advantages

The FH II S design combines a screw shank and expansion sleeve to deliver high transverse load capacity with fewer fixing points. Its optimised geometry reduces the energy required for setting, making installation quicker and less effortful. International approvals cover performance and safety, including seismic categories C1 and C2, for use in earthquake-prone regions.

Suitable for

• Fixing consoles and support brackets to concrete
• Anchoring steel constructions and mounting plates
• Securing cable trays and conduits in concrete
• General-purpose screw-mounted fixtures in cracked and non-cracked concrete

When it may not be suitable

This screw anchor is intended for use in concrete and similar solid substrates; it is not designed for hollow or lightweight substrates such as hollow brick, aerated concrete without appropriate sleeve variants, or gypsum board. For those materials, use anchors specifically rated for hollow or soft substrates.

Key specifications

• Material: zinc-plated steel
• Head type: hexagonal head
• Installation type: through-type (sleeve expansion)
• Set supplied: pack of 2 anchors
• Application substrate: cracked and non-cracked concrete
• Seismic suitability: approved for seismic C1 and C2 regions

How to use

Drill a hole to the required diameter and depth in the concrete, clean the hole of dust, insert the anchor through the fixture into the hole until the plastic ring sits against the fixture, then tighten the hex screw. As the screw is tightened the cone is pulled into the sleeve causing radial expansion against the hole wall and clamping the fixture to the substrate. Follow torque specifications appropriate for the anchor size and substrate to achieve rated performance.

What to consider before purchase

• Verify substrate type — designed for cracked and non-cracked concrete, not hollow materials
• Confirm required anchor diameter and embedment depth for load conditions
• Check that a pack of 2 meets the quantity needed for your project
• Ensure compatibility of the hex head size with available tools and torque requirements

Usage recommendations

Use cleaned, correctly sized holes and observe manufacturer torque values. For safety-critical or seismic installations, follow local building codes and the product’s approval documentation. When in doubt about substrate suitability or load requirements, consult a structural engineer.