Nothing can damage a building as much as water ingress. In order to prevent this, not only the building materials used must be water-proof, but the connecting means also belong to a well thought-out sealing. The SPAX Plumbers' screw is used where plastic roof plates, plates or connection profiles have to be permanently fixed tightly. For this purpose, our plumber screw is made of stainless steel and is supplied with an attached washer with an EPDM rubber seal. The latter prevents water from entering the construction through the drilled hole in the roof skin. Unlike other products, our sealing washer is one piece and has a diameter of 20 mm. This not only benefits the sealing itself, but also the pressure distribution on the often sensitive plastic and metal surfaces. Screw and sealing washer are made of stainless steel A2 and can withstand the direct weather without any problems. In addition to the larger sealing washer, it is above all our features typical of SPAX that make our SPAX-P