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Socket screws have a cylindrical head and an internal hex drive. They are used when externally wrenched fasteners are not practical because of a lack of space. Socket screws are tightened using an Allan or Hex key. Discover everything you need to know in our [socket screws guide](https://uk.rs-online.com/web/content/discovery/ideas-and-advice/socket-screws-guide).

RS offer an extensive range of high-quality threaded fixings with standard metric threads and UNC (Unified National Coarse) threads.

### Head Shapes
- **Hex Socket Button** - has a larger head diameter making them more appropriate for holding thin materials such as sheet metal guards.
- **Hex Socket Cap** - Socket cap screws have a head height equal to the shank diameter. They are used instead of a hex bolt when there is less clearance available.
- **Hex Socket Countersunk** - used when you need a screw to fit flush or below the surface of your material.
- **Hex Socket Shoulder** - often used as a pivot point or axis because shoulders are ground to a tight tolerance. They feature a small cylindrical head with tall vertical sides.

#### What are the different types of materials available?

Our socket screws are available in a range of materials to suit every application and environment. They include;

- Stainless Steel, including 316 and 304 grades
- Steel
- Brass
- Titanium Alloy

#### When would I use a Socket Screw?

Socket screws are found in a wide range of applications and industries. Machinery can often be found to have socket screws in their construction along with many industrial and engineering applications. Socket screws can provide a high level of torque and are easy to install or remove with both a manual allen or hex key or with an allen or hex bit in an electric screwdriver or drill.



Browse our latest Socket Screws, Hex Screws and Allen Key Screw offers. Shop now and also free delivery available.

Socket Screws, Hex Screws, Socket Head Cap Screws | RS

Socket Screws

Browse our latest offers of Button Head Screws. Free Delivery Available.

Button Head Screws | RS

Browse our latest offers of Countersunk Socket Screws. Free Delivery Available.

Countersunk Socket Screws | RS

Browse our latest offers of M6 Socket Head Cap Screws. Free Delivery Available.

M6 Socket Head Cap Screws

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