Machine screws are fasteners designed to hold objects together, typically made of metal. They have a uniform diameter and are often used with a nut or tapped hole to create a secure connection. Machine screws come in various sizes and lengths, making them suitable for different applications in construction, machinery, and electronics. These screws can be driven into place using a screwdriver or a wrench, depending on their head type, such as Phillips, slotted, or hex. They are commonly found in automobiles, appliances, and furniture, providing strength and stability in various assemblies.