【Nut Type】:M12 Hex Serrated Flange Nut (Fine Pitch) features a precision thread diameter of 12mm (0.47 ) and a pitch of 1.25mm. With a hex width of 15mm (0.59 ), these nuts adhere to the metric measuring system, ensuring accurate fits for your projects. 【Premium Materials】:Constructed from high-quality 304 stainless steel, our hex serrated flange nuts deliver outstanding corrosion resistance, making them ideal for both indoor and outdoor applications, guaranteeing durability and longevity. 【Precision Engineering】:Metric M12 x 1.25mm fine pitch threading meets DIN 6923 standards, ensuring compatibility with European and Japanese machinery. Superior thread accuracy prevents cross-threading and provides secure connections in high-vibration environments. 【Enhanced Security】:The innovative serrated flange design with 360° grip teeth significantly reduces loosening risk during vibration and thermal cycling. Perfect for automotive repair, machinery assembly, outdoor equipment, and heavy-duty industrial applications. 【What’s Included】:Each package includes 10 M12 x 1.25mm hex serrated flange nuts made from 304 stainless steel, ensuring you have more than enough for all your projects. Keep your toolkit well-stocked with these essential fasteners!