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The primary function of a HeliCoil wire thread insert is to repair damaged threads or enhance the strength and durability of existing threads in materials such as metal, plastic, or composite. Here’s how it achieves this:

1. Thread Repair: If the threads in a hole become stripped, worn out, or otherwise damaged, a HeliCoil insert can be installed to provide new, strong threads. This repair restores the integrity of the threaded connection, allowing for screws, bolts, or other fasteners to be securely tightened without the risk of stripping or loosening.

2. Thread Reinforcement: Even in undamaged threads, HeliCoil inserts can be used to reinforce the connection, especially in materials prone to thread stripping or where high-strength threads are required. By adding an additional layer of metal with the HeliCoil insert, the load-bearing capacity and resistance to vibration and fatigue are significantly improved.

3. Corrosion Resistance: HeliCoil inserts are often made of stainless steel, providing excellent corrosion resistance. This helps to maintain the integrity of the threaded connection over time, even in harsh environments or when exposed to moisture and chemicals.

4. Versatility: HeliCoil inserts are available in a wide range of sizes and thread types, making them suitable for various applications across different industries. They can be used in automotive, aerospace, electronics, machinery, and many other fields where reliable threaded connections are crucial.

The function of a HeliCoil wire thread insert is to strengthen, repair, or enhance threaded connections, ensuring they remain secure and reliable in a variety of conditions.