M8 Zinc Plated Heavy Hexagon Nut - A194 Grade 2H Quenched & tempered carbon steel heavy hex nuts Where: e = point to point m = thickness s = across flats d = Thread e - 14.38 mm (min) m - 7.64 mm (min) s - 12.73 mm (min) d - M8 Thread Pitch - 1.25 mm