Small Parts 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 Plated Finish, Class 6, DIN 934, Metric, M4-0.7 Thread Size, 7 mm Width Across Flats, 3.2 mm Thick (Pack of 100): Amazon.com: Industrial & Scientific
18-8 Stainless Steel Hex Nut, Black Oxide Finish, DIN 934, Metric, M5-0.8 Thread Size, 8 mm Width Across Flats, 4 mm Thick (Pack of 100): Amazon.com: Industrial & Scientific