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A flange nut is a nut that has a wide flange at one end that acts as an integrated washer. This serves to distribute the pressure of the nut over the part being secured, reducing the chance of damage to the part and making it less likely to loosen as a result of an uneven fastening surface.

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Flange nuts are a type of fastener known for their unique design, featuring an integrated flange or washer-like structure. These nuts are commonly used in various industries and applications where vibration resistance, secure fastening, and ease of installation are crucial.

A flange nut provides a built-in washer (flange) that distributes the clamping load over a wider area than a regular lock nut. The design does not require a flat washer and is the better option for an oversized or slotted hole.

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