What is a hex socket set screw?

A hex socket set screw, also known as a grub screw or Allen screw, is a type of threaded fastener that is used to secure one object within another. It consists of a cylindrical shaft with a head that has a hexagonal recess, which is designed to be driven into a pre-drilled hole or tapped thread using a hex wrench or Allen key.

The head of the hex socket set screw can be flush with the surface of the object it is securing, which makes it a popular choice for use in applications where a smooth surface is required. They are also useful in applications where a bolt head or other type of fastener would be unsightly or cause interference.

The threads on a hex socket set screw are usually tapered and do not extend to the end of the shaft. This allows the screw to be fully threaded into an object while still leaving room for a mating part or another screw to be installed from the other side.

Hex socket set screws are commonly used in a variety of industries, including automotive, aerospace, construction, machinery, and electronics. They are available in a range of materials, such as steel, stainless steel, and titanium, and in a variety of sizes and lengths to suit different applications.