Socket head screws are a type of fastener characterized by a cylindrical head and a hexagonal recess that allows for easy tightening and loosening using a hex key or Allen wrench. They are commonly made from various materials, including steel and stainless steel, providing strength and durability for different applications. These screws are often used in machinery, automotive, and construction projects due to their ability to withstand high torque. Their design helps prevent stripping, making them a reliable choice for securing components in tight spaces where traditional screw heads may not fit.