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    Flange Nut – 5/16″-18 – Serrated – Zinc Plated – Hardened Fasteners

    Part #: HNCFL-5/16

    Hardened serrated flange nut with 5/16″-18 UNC threads for vibration-resistant fastening. Built-in washer flange ensures secure clamping and even load distribution. Zinc-plated finish provides corrosion resistance for automotive, machinery, and structural applications.