Socket Screws: Everything You Need to Know

Socket Screws: Everything You Need to Know

Socket screws are one of the most popular types of fasteners, thanks to their versatility and strength. Today, they are used for all kinds of applications, from holding together pieces of wood to securing metal parts in machinery.

But what are socket screws, and what makes them different from more traditional fasteners such as hex bolts or set screws?

What is a Socket Screw?

Unlike other screws, socket screws have a hexagonal recess in the head that can be driven with an Allen key, hex wrench, or socket. This makes socket screws ideal for applications requiring extra torque, such as in machinery or furniture, or where space is limited, and traditional tightening and loosening would be impossible.

Since these fasteners can be used as either a bolt or a screw, they tend to go by many names, including Allen key screws, socket head bolts, or socket screws.

socket screws

Socket Screw Applications

As mentioned, socket screws are most often associated with machinery and heavy-duty construction. However, they can be used in a wide range of applications, both indoors and out.

Some typical socket screw applications include:

  • Securing metal parts in machinery
  • Attaching furniture legs
  • Mounting hinges
  • Securing decking or fencing

What Are the Advantages of Using Socket Screws as Fasteners?

Due to their inherent properties, socket screws deliver several advantages over other types of fasteners, making them the ideal choice for many applications.

  • Some of the advantages of socket screws include:
  • Socket screws are very versatile and can be used in a wide range of applications.
  • They are very strong and can handle large amounts of torque without stripping or breaking.
  • Socket screws are well-suited to environments where access space is limited, such as in machinery.
  • Superior clamping force means you can use fewer socket screws than other types of fasteners while still achieving a secure connection.
  • Internal wrenching characteristics means they can be easily loosened or tightened with an Allen key. No need for external wrenching with a screwdriver etc.

What Are Some of the Different Socket Screw Designs?

There are various different socket screw designs, and your specific application will dictate your choice. However, below are some of the most common designs used today.

  • Socket Head Cap Screws – These screws have an extended thread and enlarged cylindrical head for enhanced wrenching.
  • Shoulder Screws – This design features a much smaller thread and dowel section that protrudes over the thread.
  • Flat Head Socket Screws (Countersunk) – These socket screws have a flat head and are tapered at the end for a flush fit.
  • Button Head Socket Screws – As the name suggests, these screws have a button-shaped head and a full-length thread.
  • Socket Set Screws (Grub screws) – These screws have no head and are fully threaded with a blunt tip. They are driven into a pre-tapped hole and used to secure parts in place.
  • Pressure Plugs – Pressure plugs are compression fasteners used in hydraulic and pneumatic applications.

Source Your Socket Screws from Leyton Fasteners Today

At Leyton Fasteners, we stock all manner of socket screws.

Our range is available in Imperial & Metric, in various materials & finishes, from high strength alloy steel finished in black or zinc plated to various grades of stainless steel and other exotic materials. Lastly, we also stock a range of hex wrenches and Allen keys to suit your application.

We offer next-day delivery nationwide, and our team is always on hand to answer any queries you might have regarding our range of socket screws on 0151 355 8045. If you already know what you need, why not browse our online fastener shop and place your order today?