Metric fasteners, also known as bolts and nuts, are essential components used in various industries. These fasteners are available in different shapes, sizes, materials, and forms, making them suitable for diverse applications. Metric fasteners are used in manufacturing machines, appliances, aircraft, ships, engines, and many others. Understanding the different uses of metric fasteners is crucial for selecting the right fastener type for each application. Automotive Industry Metric fasteners are used in the automotive industry for various applications, from mounting wheels to securing the engine to the chassis.