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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.



Shop our range of Socket Screws & Cap Screws. Free Next Day Delivery. Browse our latest Socket Screw offers.

Socket Screws | Cap Screws | RS

Socket Screws

RS PRO Steel Hex Socket Cap Screw, 3/4-10 x 2 1/2in

RS PRO Steel Hex Socket Cap Screw, 1/4-20 x 2 1/2in

RS PRO M6 x 40mm Hex Socket Cap Screw Plain Stainless Steel

RS PRO Stainless Steel Hex Socket Countersunk Screw M4 x 10mm

RS PRO M4 x 40mm Hex Socket Cap Screw Plain Stainless Steel

RS PRO M6 x 40mm Hex Socket Countersunk Screw Bright Zinc Plated Steel

RS PRO Plain Steel Hex Socket Cap Screw M24 x 40mm

RS PRO Stainless Steel Hex Socket Countersunk Screw M12 x 40mm

Buy Button Head Screws. Browse our latest Button Head Screws offers. Free Next Day Delivery.

Button Head Screws | RS

Buy Countersunk Socket Screws. Browse our latest Countersunk Socket Screw offers. Free Next Day Delivery.

Countersunk Socket Screws | RS

Buy M6 Socket Head Cap Screws. Browse our latest Socket Head Cap Screw offers. Free Next Day Delivery.

M6 Socket Head Cap Screws | RS

Buy our range of 50mm socket screws. Browse our latest socket screws offers. Don't miss out on our latest deals!

50mm Socket Screws | RS

Shop our range of socket screws. Browse our latest offers for socket screws. Don't miss out on our latest deals!

75mm Socket Screws | RS

Buy our range of 40mm socket screws. Browse our latest socket screws offers. Don't miss out on our latest deals!

40mm Socket Screws | RS

60mm Socket Screws | RS

Buy our range of black socket screws. Browse our latest socket screws offers. Don't miss out on our latest deals!

Black Socket Screws | RS

100mm Socket Screws | RS

Buy from our selection of socket screws from Krome. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Krome Socket Screws | RS Components

Buy from our selection of socket screws from Neji. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

40mm Socket Screws

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