ISO 4014 Hexagon head bolts Steel class 8.8 45 x. 120 mm, 32 pcs. 45 x 160 mm, 336 pcs. 45 x 210 mm, 160 pcs. ISO 4032 Hexagon nuts Steel class 8 45 mm, 538 pcs. DIN 125 A Flat washers 45 mm 538 pcs. Only European suppliers Please include certificate 3.1 Bolts must be checked with ring gauge go & no-go. Confirmed with photographic evidence This is a verification that the thread meets the manufacturing standard incl. tolerance g6