Ok, I’ve understood.
OPTIMISED GEOMETRYDifferentiated diameter between the two threads, longer shank and special tip for excellent static performance.
DUROCOATSurface ”durocoat” treatment, for excellent corrosion resistance.
FIELDS OF USEFastening of continuous insulation in the roof and façade; can be used for both soft and hard insulation. Service classes 1 and 2.
VERSATILE FASTENINGThe two threads of the screw have different diameters, guaranteeing excellent resistance, smaller minimum distances and closer positioningbetween the screws.
NO CRUSHINGThe central shank of the screw has a larger diameter and guarantees excellent resistance to compression, impeding crushing of the insulation, even with heavy loads.