Amazon.com: 15 M10-1.50 Hexagon Flange Nut with Serrations Class 8 Black Oxide DIN 6923 : Industrial & Scientific
Amazon.com: 50 M6-1.0 Hexagon Flange Nut - Non Serrated Class 8 Zinc. DIN 6923 / ISO 4161 : Industrial & Scientific
500pcs) DIN 6923 M5 Hexagon Flange Nuts Without Serration A4 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP6923405: Amazon.com: Industrial & Scientific
(6000 pcs) M6-1.0, DIN 6923, Metric, Hex Flange Nuts, Class 8 Steel, Zinc Plated: Amazon.com: Industrial & Scientific
Amazon.com: FullerKreg (Pack of 25) M5 x 0.8 A2 Stainless Steel DIN 6926 Hex Flange Nylon Insert Lock Nuts, 18-8 Stainless Steel 304, Bright Finish : Industrial & Scientific