Hexagonal Nuts DIN 934 / M20 / Material: Galvanised Class 8 / Hexagonal Nut Pack of 10 : Amazon.de: DIY & Tools
Steel Hex Nut, Zinc Yellow-Chromate Plated, Class 10, DIN 934, Metric, M22-2.5 Thread Size, 32 mm Width Across Flats, 18 mm Thick (Pack of 5): Amazon.com: Industrial & Scientific
M20 Hexagon Nuts (DIN 934) - Mild Steel (Grade 10)