● High quality socket countersunk screws made of carbon steel and to DIN 7991 standards. ● M8 x 70mm, M8 x 80mm, M8 x 90mm, M8 x 100mm, M10 x 70mm, M10 x 80mm, M10 x 90mm, M10 x 100mm, M12 x 70mm, M12 x 80mm, M12 x 90mm, M12 x 100mm are partial threads.