The main requirement, which is fully complies with the screws presented on the Metizsnab website is the use of only high -quality materials. You cannot ignore the importance of using the newest technologies. We offer a high level of service in exchange for the gratitude of the client for quality goods. We are ready to make concessions if you decide to buy self -tapping screws in bulk. They are previously covered with a special solution, which is a reliable defender from such an unpleasant phenomenon as corrosion. The material is so persistent that sometimes you can not even first drill the surface.