What are machine screws commonly used for?

Machine screws are used to fasten machine components, tools, and appliances. They are designed to be used with nuts or tapped holes and are often used in conjunction with washers. Machine screws are available in a wide range of sizes and materials, including steel, stainless steel, brass, and nylon. They are commonly used in a variety of applications, including the assembly of electronic devices, automotive parts, and household appliances.