You are purchasing a Chequer Plate CSK Torx Head Fixings Pk 20 A4-80 is the equivalent of Mild Steel 8.8 high tensile bolts Kits Consists of; 20no M6 A4-70 x 25mm Countersunk Torx Head Bolts 20no M6 A4 Flat Washers 20no M6 A4-80 Flanged Serrated Nuts