An “EN8 square flat“ likely refers to EN8 (or 080M40) steel in a flat bar shape, or possibly a square bar with a flat profile, not a unique “square flat“ item. Key specifications for EN8 flat bars include their grade (a medium carbon steel), a size range for width and thickness (e.g., 25-300mm width, 5-100mm thickness), and various finishes like hot-rolled, cold-drawn, or bright. EN8 steel is valued for its excellent tensile strength, toughness, and machinability, making it suitable for general engineering and automotive applications.