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Sealey FN8 Flange Nut Serrated M8 Zinc DIN 6923 Pack of 100 : Amazon.co.uk: DIY & Tools
(1000pcs) DIN 6923 M4 Hexagon Flange Nuts with Serration A4 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP692344: Amazon.com: Industrial & Scientific
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300 pcs) M8-1.0, DIN 6923, Metric, Hex Flange Nuts, Class 8 Steel, Zinc Plated: Amazon.com: Industrial & Scientific
100 pcs) Metric DIN 6923 M12X1.25 Hex Flange Nut Steel Class 8: Amazon.com: Industrial & Scientific
Amazon.com: 50 M6-1.0 Hexagon Flange Nut - Non Serrated Class 8 Zinc. DIN 6923 / ISO 4161 : Industrial & Scientific