How Do I Create a Custom Thread in SolidWorks?

Creating a custom thread in SolidWorks is an essential skill for any designer or engineer working with this popular 3D modeling software. In this tutorial, we will walk you through the step-by-step process of creating a custom thread, allowing you to add intricate details to your designs. So, let’s dive in!

Step 1: Open SolidWorks
To begin, open SolidWorks on your computer and create a new part document. This will serve as the base for our custom thread.

Step 2: Create a Cylinder
Next, create a cylinder by selecting the “Sketch” tab and choosing the “Circle” tool. Draw a circle on the top plane with the desired diameter for your custom thread.

Step 3: Extrude the Cylinder
After creating the circle, select the “Extrude Boss/Base” tool from the toolbar or navigate to “Insert” > “Boss/Base” > “Extrude.” Set the desired height for your custom thread and click on “OK.”

Step 4: Create Helix/Spiral
Now it’s time to create a helix or spiral that will define the shape and path of our custom thread. To do this, navigate to “Insert” > “Curve” > “Helix/Spiral.” Specify parameters such as pitch, height, revolutions, etc., based on your design requirements.

Tip: You can experiment with different settings to achieve various thread profiles like square threads or trapezoidal threads.

Step 5: Sketch Thread Profile
With the helix/spiral created, return to the top plane and start sketching the profile of your custom thread. Use lines and arcs to draw half of one complete thread profile.

Note: Ensure that your sketch is fully defined by adding relations between lines and arcs. This will help maintain the integrity of your thread profile during future modifications.

Step 6: Create a Sweep
Once you’ve completed the sketch, navigate to “Insert” > “Boss/Base” > “Sweep.” In the “Sweep” dialog box, select the sketch profile as the “Profile” and the helix/spiral as the “Path.”

Step 7: Adjust Thread Parameters
In this step, you can fine-tune your custom thread by modifying various parameters. SolidWorks provides options to adjust thread depth, pitch diameter, major diameter, and minor diameter.

Step 8: Finishing Touches
Finally, review your custom thread and make any necessary adjustments. You can use SolidWorks’ visualization tools to rotate and inspect your model from different angles to ensure accuracy.

  • Troubleshooting Tips:
  • If your custom thread does not display correctly, double-check that all sketches and features are fully defined.
  • Remember to save your work regularly to avoid losing progress.

In Conclusion

Creating a custom thread in SolidWorks allows you to add intricate details to your designs. By following these steps, you can easily create custom threads tailored to your specific design requirements.


In this tutorial, we walked through the step-by-step process of creating a custom thread in SolidWorks. We started by creating a cylinder and then used a helix or spiral to define the path of our custom thread.

Next, we sketched the profile of our thread and created a sweep using the sketch profile and helix/spiral. Finally, we adjusted various parameters to fine-tune our custom thread. By following these steps and making use of SolidWorks’ powerful features, you can create detailed and accurate custom threads for your designs.