Wall stars with an EPDM sealing washer are a self-drilling universal cladding screw for fastening cladding to thin metal battens, steel purlins or alternatively can be used to fasten to timber battens where a rubber seal is required. This screw is perfect in residential and commercial construction where cladding to steel or timber is required. Universal self drilling point enables the tip to drill through light gauge mild steel and timber alike. The flanged hex head lends to high pull-out strength and a class 4 galvanised coating results in strong corrosion resistance.