Compared to fasteners used in other sectors, automotive fasteners possess distinct characteristics. When selecting materials for automotive fasteners, a multitude of factors must be taken into consideration. Steel is the most widely used material; however, depending on the specific application site, different grades of carbon steel, alloy steel, or stainless steel are selected. In areas where weight reduction is a priority, aluminum alloys or titanium alloys may be employed.
For high-temperature operating environments-such as within the engine-specialized heat-resistant alloy materials are chosen. These materials must not only satisfy strength requirements but also exhibit appropriate toughness, corrosion resistance, and thermal stability.
