M10 x 45mm Socket Button Head Screws (ISO 7380) - High Tensile Steel 10.9 Zinc Plated Socket Button Head Screws, also known as Dome Head Screws, feature an internal socket drive, and are fastened with a Hexagonal\/Allen key. Their Low Domed Head offers an attractive finish, as well as a wider bearing surface. These Metric Socket Button Head Screws are made from 10.9 High Tensile Steel, and coated in a Bright Zinc Plating which provides a level of corrosion and oxidation resistance. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. M10 x 45mm Socket Button Head Screws (ISO 7380) - High Tensile Steel 10.9 Zinc Plated