M10 x 25mm Socket Countersunk Screws (DIN 7991) - High Tensile 10.9 Socket Countersunk Screws feature an internal socket drive and are fastened with a Hexagonal\/Allen key. The slanted neck and flat top allow for Socket Countersunk Screws to lay flush with the fastened surface or raised when paired with a Cup\/Countersunk Washer. These Socket Countersunk Screws are made from 10.9 High Tensile Steel. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. M10 x 25mm Socket Countersunk Screws (DIN 7991) - High Tensile Steel 10.9 Self Colour