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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&nbsp;<a href="https://uk.rs-online.com/web/content/discovery/ideas-and-advice/socket-screws-guide">socket screws guide</a>. RS offer an extensive range of high-quality threaded fixings with standard metric threads and UNC (Unified National Coarse) threads. <h3>Head Shapes</h3> <ul> <li>Hex Socket Button - has a larger head diameter making them more appropriate for holding thin materials such as sheet metal guards.</li> <li>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.</li> <li>Hex Socket Countersunk - used when you need a screw to fit flush or below the surface of your material.</li> <li>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.</li> </ul> <h4>What are the different types of materials available?</h4> Our socket screws are available in a range of materials to suit every application and environment. They include; <ul> <li>Stainless Steel, including 316 and 304 grades</li> <li>Steel</li> <li>Brass</li> <li>Titanium Alloy</li> </ul> <h4>When would I use a Socket Screw?</h4> 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.

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Countersunk Socket Screws

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