HOT DIP GALVANIZED BOLTINGS WITH ASSOCIATED NUTS AND WASHERS Material bolts SA 193 GR B7 Material nuts SA 194 GR 2H Hexagon head bolts M42x160mm (threaded Lg. 70mm) With heavy hexagon nut and two washers 8 pcs. Hexagon head bolts M20x80mm With heavy hexagon nut and two washers 35 pcs. Hexagon head bolts M20x65mm With heavy hexagon nut and two washers 45 pcs. Hexagon bolts M16x60mm With heavy hexagon nuts and two washers 100 pcs. Hexagon head bolts M12x50mm With heavy hexagon nut and two washers 140 pcs. Pelase include 3.1 certificate