These Construction Woodscrews are made of steel with a superior corrosion resistance coating consisting of a Zinc base with a Nano topcoat. This special Class 4 VG coating is smoother and better than standard Class 4 Galv and suitable for C4 atmospheric conditions
They come in two head types - Countersunk and Washer head, and have a star drive (6 Lobe/Torx head)
The C4 screws come with a European Technical Assessment (ETA) which is noted on the carton label.
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