10-32 UNF Helicoil Thread Dimensions: A Comprehensive Guide
When it comes to thread repair, Helicoil inserts are a popular choice for repairing damaged or stripped threads. In this article, we'll delve into the world of 10-32 UNF Helicoil thread dimensions, exploring the specifics of this versatile and widely-used thread size.
What is a 10-32 UNF Thread?
A 10-32 UNF thread is a type of screw thread commonly used in a variety of applications, including aerospace, automotive, and industrial manufacturing. The "10" refers to the thread diameter in 32nds of an inch, while the "32" represents the number of threads per inch. The "UNF" designation indicates that the thread is a Unified National Fine thread, which is a standardized thread form.
10-32 UNF Helicoil Thread Dimensions
The following table outlines the key dimensions for 10-32 UNF Helicoil threads:
| Dimension | Value |
|---|---|
| Thread diameter (major diameter) | 0.190 in (4.83 mm) |
| Thread diameter (minor diameter) | 0.156 in (3.96 mm) |
| Pitch | 0.03125 in (0.79 mm) |
| Threads per inch | 32 |
| Thread length | 0.375 in (9.53 mm) |
| Insert length | 0.500 in (12.70 mm) |
| Drill size | #21 (0.159 in or 4.04 mm) |
Helicoil Insert Dimensions
When selecting a Helicoil insert for a 10-32 UNF thread, it's essential to ensure the correct insert size is chosen. The following table provides the key dimensions for 10-32 UNF Helicoil inserts:
| Dimension | Value |
|---|---|
| Insert outer diameter | 0.220 in (5.59 mm) |
| Insert inner diameter | 0.190 in (4.83 mm) |
| Insert length | 0.500 in (12.70 mm) |
| Free-running thread length | 0.375 in (9.53 mm) |
Conclusion
In conclusion, understanding the 10-32 UNF Helicoil thread dimensions is crucial for successful thread repair. By following the dimensional guidelines outlined above, engineers and technicians can ensure that their thread repair projects are completed accurately and efficiently. Whether you're working in aerospace, automotive, or industrial manufacturing, having a solid understanding of these dimensions will help you achieve professional-grade results.
