M8M10M12M14M16M20 8.8 grade high strength fine tooth hexagon nut flat thin nut black flat nut for Machinery & Industrial Assembly

Material & Strength: Crafted from high-quality carbon steel with 8.8 grade high tensile strength, featuring a black finish for enhanced anti-rust, wear resistance and corrosion resistance, ideal for long-term use in industrial and mechanical scenarios.
Design & Feature: Thin flat hexagon nut design with fine tooth (fine pitch) thread, compact structure saves installation space; precise thread processing ensures tight fit with bolts, strong load-bearing capacity, and no loosening during long-term operation.
Size Specification: Available in M8, M10, M12, M14, M16, M20 sizes, compatible with standard fine-thread bolts and hex tools, meeting diverse assembly needs for heavy-duty equipment and industrial projects.
Application Scenarios: Widely used for machinery assembly, mechanical fitting, heavy-duty equipment maintenance, automotive repair, and industrial construction, suitable for professionals and batch procurement.
Quality Assurance: Strict quality control, consistent dimensions, smooth surface (no burrs), uniform black finish, compliant with industrial standards, reliable for long-term use and bulk orders.

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