hese Forgefix Tec Fix Roofing Screws are self drilling, with a hexagonal head. They come complete with a 16mm composite aluminium/rubber washer
Suitable for use when fixing sheet material to heavy section purlins 6.0mm to 12.5mm.
Self-drilling screws have a drill-shaped point to cut through the substrate to eliminate the need for drilling a pilot hole. They are designed for use in soft steel or other metals.
The hexagonal head has been designed for use with spanners or sockets and offers maximum torque when used with these tools.