Product sheet
Category sheet
Smooth threaded spacer
  • 35 million casings designed each year
  • Co-designer of custom fasteners for 100 years and manufacturer of standard products
  • From M2.5 to M20 and from 6 mm to 22 mm
  • Steel, stainless steel, brass, etc. (other materials available on request).

This bushing eliminates any risk of plastic deformation and facilitates the overmolding or post-molding process in all types of plastic. They are used as compression limiters in industrial applications, mainly in the automotive sector.

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Threaded bushing - threaded spacer

Recognized design, manufacturing and improvement methods
Our customers and their applications

Threaded bushing - threaded spacer

Today, we produce the fasteners of tomorrow
From design to mass production of your parts
Co-design and development
Working closely with LGC's design engineers, you will define the project's specifications, technical requirements and constraints.
  • Feasibility checks using the FMEA tool, which is used to analyze failure modes, their effects and criticality.
Prototyping and Testing
Once the concept has been approved, the project team creates physical prototypes using a 3D machine and simulation software such as SolidWorks Premium and Spacerclaim.

  • Production of initial samples in medium series, and validation of production with PPAPs in accordance with IATF 16949.
Industrialization and Production
The production process is validated according to the production control plan drawn up by a multi-disciplinary team. 

  • Development of detailed production processes according to the APQP quality process
Assessment and Improvement
After 3 to 6 months of series production, an assessment based on the criteria required by IATF 16949 verifies 100% project conformity.
  • Collection and analysis of production data to identify trends and variations. 3PPM in 2023.
Production to support you

The advantages of manufacturing with LGC Industries

Fastening expertise from a certified manufacturer
precision engineering machines
  • 24 Multi-spindle lathes
  • 45 Tours Escomatic
  • 42 Banding machines
  • 8 Plunge and enfilade grinders
LGC Industries designs and produces over a million parts every day
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The threaded bushing: the perfect compromise between a self-tapping threaded insert and a spacer.

A threaded bushing or threaded spacer is a fastener with an external thread and a smooth interior, designed to connect securely with other components. 

Threaded bushes are essential components in the automotive and other industrial sectors.

They offer a robust and reliable fastening thanks to their external thread, while their smooth interior reduces compression and friction forces.

Whether assembling mechanical parts, engines or suspension systems, threaded bushes play a key role in ensuring the quality and durability of automotive assemblies.

Their precise design and smooth operation make them a must-have for industry professionals, especially in the automotive sector.

How are LGC threaded bushes made?

There are two different methods for creating a threaded bushing

From material to threaded bush

The manufacturing process for threaded bushes begins in a similar way to that for threaded inserts threaded inserts.

The first step in manufacturing a threaded bushing is to externally thread the coil of raw material.

This stage is called rolling, as the bushing is passed between 3 rollers and the rolling system cold-forms the part, compressing it to create the thread. Cold deformation has the advantage of reinforcing the material's elastic resistance.

For example, a threaded bushing made of rolled material will have better pull-out resistance than a rolled material.

The second step is to cut the tube from the raw material on a suitable machine. The tube is cut to the desired length. 

Chamfers and finishes can be added to the material.

The part then goes through a grinding stage.

A roller presses the workpieces against a grinding wheel rotating at high speed.

Thanks to the abrasion of the grinding wheel, the diameter of the part is modified to achieve tolerances of a few microns (~5-6 μm).

What are the advantages of a threaded bushing?

  • Ease of assembly: threaded bushes are renowned for their ease of assembly. Their simplified design enables fast, efficient installation, reducing the time needed to complete a project.
  • Reduced friction: thanks to their smooth internal surface, these threaded bushes minimize friction within the assembly. This is particularly beneficial in preventing premature component wear and ensuring consistent performance over time.
  • Precise fit: threaded bushes provide a precise fit between assembled components. This dimensional accuracy is crucial in applications where every millimetre counts to ensure optimum performance.
  • Material versatility: Smooth threaded bushes are compatible with a variety of materials, offering essential versatility. Whether for metal, plastic or composite assemblies, they adapt easily to different contexts.
  • Reduced maintenance costs: by minimizing friction and offering high corrosion resistance, smooth threaded bushes help reduce maintenance costs. Fewer parts subject to wear mean a longer service life.

Would you like to find out more about our threaded bushes?

Visit our dedicated article: All you need to know about LGC sockets

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