Fastening systems: structural stability and certified holding power on site

The construction market requires highly specific technical solutions depending on the physical and chemical nature of the substrate and the size of the load to be supported in service. Traditional mechanical expansion anchoring is the preferred choice for solid, compact substrates. Conversely, when working on hollow brick masonry or plasterboard drywall, special geometries based on deformation, folding or knotting principles are essential. Choosing the right construction plugs allows stresses within the wall to be distributed evenly, avoiding micro-fractures in the substrate that would inevitably lead to failure of the fixing point.

The ultimate shear and tensile performance of an anchor derives directly from the quality of the metal alloys used during forming. For dry indoor environments, cold- or hot-dip galvanised steel is widely used. When fixing outdoors, in aggressive industrial atmospheres or in coastal areas with high salinity, switching to A2 or A4 stainless steel becomes imperative to prevent stress corrosion cracking. Combining structural screws and tie rods with calibrated threads ensures tight metal-to-timber connections, transferring dynamic and static loads with maximum safety throughout the building's service life.

When mechanical expansion is not technically feasible, typically because drilling spacings are too small or edge distances extremely limited, resins and chemical anchors take over. These two-component formulations cure inside the hole, creating a monolithic connection between the substrate and the threaded rod without generating radial stresses. Particular design attention must be paid to heavy-duty anchors for concrete. For these critical installations, the reliability of the component must be rigorously validated by European Technical Assessments (ETA), which certify its performance both under static loads and for use in zones of high seismic classification.

Managing deep ranges of screws and small hardware often creates considerable organisational and logistical complexity in commercial warehouses. FT SPA supports building distributors with an advanced logistics infrastructure and fast deliveries nationwide, drastically reducing the risk of costly stock-outs on the most popular sizes. Visually, for in-store display, it is essential to move away from chaotic packs on the floor and adopt modular industrial shelving fitted with open-fronted picking bins. This system keeps the department perfectly tidy, helping professionals find the right sizes immediately and consequently speeding up technical self-service.