Industrial research for the development of a new range of fastening elements with high resistance to corrosion, through a new microalloyed steel with a modified chemical composition and a new surface chemical treatment, which achieves a resistance to corrosion similar to or greater than zinc plating.

Industrial research for the development of a new range of fastening elements with high resistance to corrosion, through a new microalloyed steel with a modified chemical composition and a new surface chemical treatment, which achieves a resistance to corrosion similar to or greater than zinc plating.

Industrial research for the development of a new range of fastening elements with high resistance to corrosion, through a new microalloyed steel with a modified chemical composition and a new surface chemical treatment, which achieves a resistance to corrosion similar to or greater than zinc plating.