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    5/16-18 Serrated Stainless Steel Flange Nut – Locking Hex Nut with Built-in Washer

    Part #: HNCFLS5/16

    This 5/16-18 Serrated Stainless Steel Flange Nut features a hexagonal body with an integrated washer flange and serrated teeth, providing a vibration-resistant, self-locking fastening solution. Made from corrosion-resistant stainless steel, it combines strength, durability, and a long service life. The built-in flange eliminates the need for separate washers, while the serrated face bites into the surface to prevent loosening under vibration or dynamic loads.