Flange nuts are specialized fasteners characterized by their distinctive construction, incorporating a built-in washer-like component called a flange. These mechanical components find widespread use across multiple sectors and applications where resistance to vibration, reliable attachment, and simple installation are essential requirements.

Flange nuts consist of standard nuts enhanced with a broad, level, circular rim at one side that distributes pressure and counters vibration. They help guide the fastener during mounting and provide protection against debris and water infiltration.