M12x140 Bolt/Nut - Galv
These will be supplied with 2 x M12x50x50x3 square washers as standard, made with high quality 5.8 Grade Galvanized steel
The Hex Head and Hex Nut combination make the most effective way to tighten bolts and nuts quickly, with the steel being galvanized means there is higher tensile strength and more resistant to corrosion especially for out door use including costal areas.