M10 Self Colour Heavy Hexagon Nut - A194 Grade 4 Quenched & tempered medium carbon-molybdenum heavy hex nuts Where: e = point to point m = thickness s = across flats d = Thread e - 18.90 mm (min) m - 9.64 mm (min) s - 16.73 mm (min) d - M10 Thread Pitch - 1.5 mm