Bolt is a mechanical fastener characterised by a cylindrical body and a helical ridge known as threads. Designed to be inserted through aligned holes in multiple parts, bolts are typically paired with nuts to clamp and hold components securely together. This fastening technique allows for easy assembly and disassembly, making bolts integral in construction, machinery, and various engineering applications.
The bolt's effectiveness hinges on its material composition, typically steel, aluminum, or titanium, which grants it tensile strength and resistance to environmental wear and tear. The head of the bolt varies in shape—hexagonal, square, or slotted—each designed to interface with tools like wrenches or screwdrivers, providing the leverage needed for tightening.
In specialised applications, bolts can feature unique properties such as thermal resistance, corrosion inhibition, or aesthetic enhancements like decorative coatings. These adaptations ensure that bolts meet specific requirements of the industries where they are employed, from aerospace engineering to electronic device assembly, demonstrating their crucial role in modern technology and infrastructure.