for steel, 12 mm drilling capacity, zinc-coated — sandwich panel screw 5.5 × 90 mm

A sandwich panel combines several materials, so its fixing should suit that construction. Sandwich panel screws connect the panel to the structure while accounting for cladding thickness and substrate type. For the user of a hall or workshop, this supports a stable wall or roof surface. The right fastener helps retain the panel’s benefits at the point where it connects to the building.

A long screw for sandwich cladding is more than an extended version of a small sheet-metal fixing. Its intended use covers a particular panel thickness, supporting material and fastening method. Versions are available for steel, timber and other substrates specified in the documentation. This lets the connection match the actual wall or roof assembly. In a hall with different cladding zones, this variety supports a consistent approach: each panel receives a fixing suited to its role, not merely to the length printed on the package.

The EPDM washer works against the panel surface at the fixing point. Its role is to seal, while the metal part transfers the forces specified for the connection. EPDM synthetic rubber withstands UV, ozone and changing weather well, which is useful for exposed building envelopes. Anticorrosion protection also contributes to fastener durability. Depending on the product, available systems may use zinc or suitable ceramic coatings. This combination allows the detail to suit the hall’s environment, from an ordinary warehouse to a building requiring more careful surface selection.

A broad range of lengths accommodates different panel thicknesses in different parts of the building.

Versions designed for specific substrates make it easier to organize the fasteners needed for the project.

Colour-matched heads help reduce contrast on a visible façade.

A washer bonded to its seal provides a ready-made component for clamping and protecting the hole in the panel surface.

Sandwich panel screws are used on hall walls, workshop roofs and agricultural or utility buildings. Depending on the system, the fixing may be exposed or concealed within the panel joint. This allows façade appearance to be considered alongside connection requirements. On the building’s representative side, a regular surface matters; in service areas, compatibility with the panel’s purpose takes priority. The benefit to the owner is the same: the envelope works as a whole with the structure, and small components do not restrict its function. Correctly selected fixings are a practical complement to an investment in a warm, attractive space.

We select fasteners for the panel thickness and structure, comparing available washers and protective systems. We offer competitive prices and promotional deals. SteelProfil’s wider range also includes first- and second-grade building materials, including stock batches. We help combine the purchase of suitable screws with the envelope materials for your particular building.