Socket Head Bolt
A socket screw, or Hex Screw as they are often known, is a fastener that is made with a hexagonal drive hole in the top of the screw head. This type of fastener is used to attach parts or hold items together, it is a common screw found in industrial settings, assembly lines and other applications with heavy loads. These types of screws can be used with standard wrenches or hex socket tools, which makes them easy to install and remove. Hex screws are very durable and offer superior strength and endurance when compared to other types of screw, but they are also limited in their ability to allow movement or flexibility.
There are many different varieties of these screws, they can be either fully threaded or partially threaded, but even when fully threaded they cannot handle the same tensile strengths as other screw types. They are designed to generate a compressive load in the fastening application, which is more useful for holding parts together than the more traditional tensile or shear strength that other types of screws can produce.
These screws are available in a wide range of materials including high-strength alloy steel and corrosion resistant stainless steel. They are most commonly found with a hex finish, which is an externally wrenchable finish that can be removed with a standard hex tool, but they can also come with black oxide, zinc and other finishes. The black oxide finish is most popular as it offers excellent rust resistance and can stand up to harsh environments, but for the highest strength options, we recommend choosing the solid nickel-plated or solid brass versions of these screws. Socket Head Bolt