A cap screw is a fastener with a threaded end that caps off the head and protects it from damage, allowing it to be tightened or unfastened with a wrench or socket. Cap screws are often used to keep parts together and prevent loosening and are commonly found in manufacturing equipment, furniture production, steel fabrication, and automotive and aerospace industry applications.
They are easy to install, tighten, and loosen and offer robust clamping strengths and an impressive finish. They are available in a wide range of sizes and materials and can be found in many different industries and applications. There are many types of cap screws and heads to choose from, each designed for a specific purpose. Some examples include hex heads, which are designed to fit a hex wrench, socket head cap screws, which have a flat head and recessed socket hole for use with an Allen wrench, and low or button head socket capscrews, which feature a lower profile head that’s ideal for use in counterbored holes.
There are a variety of standards for socket head cap screws that manufacturers and users must follow to ensure proper installation and safety. Regular inspections and lubrication are also important for maintaining the integrity of these fasteners and preventing wear or damage.