Spacers vs. Standoffs: Understanding the Differences

When it comes to positioning electronic hardware, spacers and standoffs are two common types of fasteners used to create space between two objects. Although they may look similar, there are important differences between spacers and standoffs that make them better for different applications. Choosing a spacer or standoff for your electronic hardware is important and understanding which applies better will help produce better quality hardware while avoiding problems that may arise later. 

Below, we discuss the differences between spacers and standoffs, their common uses, and the different types available in the market.

Standoffs: What Are They and When to Use Them

Standoffs are threaded fasteners that are used to create space between two objects while providing a solid and secure connection. They are typically used to mount circuit boards, panels, and other electronic components inside an enclosure or chassis and come in various sizes, and lengths, and are available in both male and female threading.

A male standoff has threads on both ends, while a female standoff has threads only on one end and a smooth bore on the other. The female standoff is typically used to create space between two circuit boards and the male is used to connect a circuit board to a chassis or enclosure.

Standoffs are commonly made of materials such as brass, aluminum, and stainless steel. The material is an important choice to make as well:

• Brass is a popular choice due to its excellent electrical conductivity and corrosion resistance.
• aluminum is lightweight and has good thermal conductivity. 
• Stainless steel is highly durable and can withstand harsh environments.
  

There are two common types of standoffs: 

• A standard standoff has a hex-shaped body with threads on both ends 
• Swage standoffs have a round body with threads on one end and a flat or rounded head on the other and are often used in applications where the head of the standoff needs to be flush with the surface.
  

Spacers: What Are They and When to Use Them

Spacers are non-threaded fasteners that are used to create space between two objects. Spacers are used in applications where the distance between two objects needs to be maintained but where a solid connection is not required and are available in various sizes, lengths, and shapes, including round, hexagonal, and square.

Spacers are commonly made of materials such as nylon, aluminum, and stainless steel:

• Nylon spacers are lightweight, non-conductive, and have excellent resistance to chemicals and UV light. 
• Aluminum spacers are lightweight and have good thermal conductivity.
• Stainless steel spacers are highly durable and can withstand harsh environments.
  

When to Use Spacers vs. Standoffs

Whether to use a spacer or standoff depends on the specific application requirements:

• When a solid connection is needed between two objects, such as mounting a circuit board to a chassis or enclosure, then standoffs are usually more appropriate. 
• When a solid connection is not needed, and maintaining a specific distance between two objects is the goal then spacers would be a better choice.
  

Essentially, standoffs are used in applications where vibration and shock resistance are important because they provide a more secure and stable connection than spacers. Spacers, on the other hand, are used in applications where weight and cost are a concern, such as in consumer electronics.

Stand Offs or Spacers?

When choosing an appropriate fastener for a specific application, it is important to consider factors such as the required distance between two objects, the level of vibration and shock resistance required, and the weight and cost of the fastener. With the right choice of fastener, you can ensure that your electronic components are mounted securely and positioned correctly.

We at Lyn-Tron offer a wide variety of materials, platings, threads, and length combinations for your unique applications. From aluminum to stainless steel and brass to steel, our selection of standoffs and spacers provides for a range of electronic applications. We offer threads in both metric and standard inch sizes with custom threads available when requested. 

Explore our selection by using the link below: