Black Stainless Steel Serrated Flange Nuts M3, M4, M5, M6, M8, M10. Serrated Flange Nuts: M3, M4, M5, M6, M8, M10. Color: Blackened Stainless Steel Finish. SERRATED FLANGE NUTS. High quality Stainless Steel hexagon nuts also known as a flange serrated nuts made of durable A2 stainless steel and DIN 6923 standard.
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