Screw 5.5 × 150 mm for insulated panels — for steel, 12 mm drilling capacity, graphite RAL 7016 / 7024

Buying sandwich panels is worthwhile when the completed envelope retains its intended function and appearance. Screws designed for these panels help connect the facings and core to the structure in a way that suits their construction. Suitable lengths and fastening versions allow the fixing to match both panel thickness and substrate. For the investor, this is a small item in the budget that supports the quality of a much larger purchase.

Fixing a sandwich panel requires passing through the outer facing, core and further layers to reach the supporting structure. A dedicated screw has the length and geometry needed for this task. It anchors the panel in the support while providing a fixing arrangement suited to the full thickness of the assembly. In certain versions, additional thread features help support the facing correctly. The benefit is visible in the wall’s appearance and the efficient installation of large cladding areas, where every fixing point must work as designed. On a pavilion or warehouse wall, a well-maintained panel surface is also the finished surface. An appropriate fastener supports this advantage, giving quickly installed cladding an orderly appearance.

Versions for steel, timber or other specified structures let you match the purchase to the building. The self-drilling point on a suitable product can reduce the number of operations when fixing to steel. This is useful in halls, warehouses and pavilions with many repeated connections. A properly assembled set supports a steady installation workflow and reduces the need to find substitutes at short notice. The investor can buy the panel and its fasteners as coordinated parts of one building assembly.

A washer with a high-quality EPDM seal forms flexible contact with the facing and helps limit water ingress where the screw passes through the panel. EPDM synthetic rubber withstands UV radiation, ozone and weathering well, making it suitable for exposed seals in the building envelope. In a correctly made connection, the seal helps protect the core and fixing zone, preserving the value of a material whose main purpose is to enclose and insulate the interior.

An anticorrosion coating chosen for the environment protects the metal fastener, while a painted head can match the panel colour. Across a large façade, a regular, colour-coordinated fixing pattern creates a more orderly appearance. This also matters in retail and service premises where customers see the wall. Sandwich panel screws therefore combine mechanical requirements, sealing and appearance without relying on separate, improvised additions.

SteelProfil helps you assemble the screws needed for your sandwich panels and structure. Our broad range includes first- and second-grade materials and products available from stock. Competitive prices and promotional offers make it easier to purchase the complete envelope. Tell us the panel thickness and supporting material so we can check suitable available fasteners.