Solar fastener (stainless steel) for fastening the K2 system components on roofs with trapezoidal sheeting or corrugated fibre cement covering (for steel substructure) (without adapter sheet), with building authority approval, the head of the screw is provided with a hexagon socket, M10x70 on request, included in delivery: 1 solar fastener, stainless steel, 1 locking nut M10, stainless steel, 1 washer, stainless steel, 1 hexagon nut M10, stainless steel, 1 sealing washer, stainless steel, 1 calotte E16, aluminum
