SPA 04/05/06 Round Acetal Spacers
PSM SPA Series Round Acetal Spacers are designed to provide precise spacing and support between components. These spacers are made from high-quality acetal material, known for its strength, lightweight nature, and excellent electrical insulation. They are ideal for applications that require durability, thermal stability, and accurate alignment.
Advantages
> High electrical insulation
> Lightweight
> High strength plastic
> Good thermal stability
Materials Available
AC-Acetal
Dimensions
Type SPA04
Where body length is less than the combined depths of thread shown, thread length is total length of spacer.
Type SPA05
Where body length is insufficient to allow full depth of thread, maximum thread length will be body length minus D to allow for drill point and tapping clearance.
Key Features
- Non-conductive for safe electrical insulation
- Lightweight and easy to handle
- Resistant to wear, moisture, and temperature changes
- Reusable threads allow secure and repeated assembly
- Ideal for both mechanical and electronic assemblies
Common Applications
These round acetal spacers are widely used in:
- Printed circuit boards (PCBs)
- Electrical and electronic assemblies
- Instrumentation and control equipment
- Light mechanical structures requiring component separation
They provide precise spacing between parts while preventing electrical contact, making them an essential part of many modern assemblies.
Usage Tips
- Match the thread size and length with the intended bolt or screw.
- Avoid excessive tightening to prevent thread wear.
- Choose appropriate spacer length to maintain proper clearance.
- Store in a dry, cool environment to extend product life.
Enhance Your Assembly with Our Round Acetal Spacers
Start browsing our products or request a quote today to find the ideal fastening solution for your application.
Frequently Asked Questions About Round Acetal Spacers
What are PSM SPA 04/05/06 Round Acetal Spacers used for?
What is the difference between SPA 04, SPA 05, and SPA 06?
SPA 04, SPA 05, and SPA 06 are all round acetal spacers within the same family sharing the same acetal material and round profile. They differ in thread configuration — SPA 04 is female-female (internally threaded at both ends), SPA 05 is male-female (one external thread, one internal thread), and SPA 06 is male-male (externally threaded at both ends) — allowing engineers to choose the correct thread interface for their specific assembly stack.
Why is acetal (POM) the material of choice for these spacers?
Are SPA 04/05/06 Round Acetal Spacers electrically insulating?
Yes — non-conductive electrical insulation is the first listed key feature. Because acetal is a high-resistance polymer, these spacers prevent electrical contact between mating metal components, making them an essential choice for printed circuit board assemblies, electrical enclosures, and instrumentation where conductive paths between separated components must be avoided.