M6 x 20mm Socket Button Head Screws (ISO 7380) - PEEK Metric 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 Socket Button Head Screws are made from PEEK, which is ideal for use in demanding applications since PEEK has excellent thermal and chemical resistance, as well as a high degree of mechanical strength and stiffness. The material flammability standard of PEEK is UL94 V-0 and the continuous use temperature for this material is 180°C. These Socket Button Head Screws have been precision manufactured in house from PEEK UL94 V-0 using state of the art CNC Machines to ISO 7380. Due to this, unless the item is deemed faulty, this item is non-returnable and non-refundable. All Peek Screws are manufactured to order, therefore please allow 1 to 2 weeks for dispatch. If we do have any in stock, we will dispatch within 1 working day. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. M6 x 20mm Socket Button Head Screws (ISO 7380) - PEEK