The double thread screw of our line of components for fixing allows a quick and safe on all types of pitched roofs covered with corrugated systems, corrugated sheets, bowls of various shapes, beams, etc ...
The generous adjustment allows an efficient leveling sconinessioni roof. The screw is supplied with 3 flanged nuts unscrewing under head with knurled stainless steel 304 and a high density EPDM gasket. To the screw combines the plate PST-10/12 always of our line of components for fixing.