HOT DIPP GALVANISED fasteners, rust proof. DIN 933 CARBON STEEL- HIGH STRENGTH- CLASS 8.8, HRC 25-32, HDG M20 X 350 - 570 PCS DIN 931 CARBON STEEL- HIGH STRENGTH- CLASS 8.8, HRC 25-32, HDG M20 X 350 - 570 PCS HEX NUT DIN 934 -CLASS 8- M20 - 570 PCS. FLAT WASHER DIN 125A - M20 - 1150 PCS. External STAR LOCK WASHER M20 - 570 PCS.