Exotic fasteners are fasteners, such as bolts, nuts, screws, rivets, and pins, made from materials other than the commonly used steel and aluminum. Exotic fasteners are made from a variety of materials, including titanium, carbon fiber composites, polymers, ceramics, and other specialty metals. These materials have unique attributes that make them suitable for specific applications. They are often used in aerospace, automotive, medical, and other industries where strength, corrosion resistance, or weight savings are important considerations.