M8 x 30mm Socket Cap Head Screws (DIN 912) - High Tensile 12.9 Self Colour Metric Socket Cap Head Screws are a widely used machine screw, which feature an internal socket drive, and are fastened with a Hexagonal\/Allen key. Due to this, they are very versatile and easily accessible as the internal drive allows for a smaller head diameter than seen on other machine screws. These Socket Cap Head Screws are made from 12.9 High Tensile Steel. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. M8 x 30mm Socket Cap Head Screws (DIN 912) - High Tensile Steel 12.9 Self Colour