Amazon | Steel Hex Nut, Plain Finish, Class 6, DIN 934, Metric, M2-0.4 Thread Size, 4 mm Width Across Flats, 1.6 mm Thick (Pack of 100) by Small Parts | 六角ナット | DIY・工具・ガーデン 通販
Steel Hex Nut, Zinc Plated Finish, Class 8, DIN 934, Metric, M10-1 Thread Size, 17 mm Width Across Flats, 8 mm Thick (Pack of 50): Amazon.com: Industrial & Scientific
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