High Precision Heli-Coil Thread Inserts
- Product Details
Introduction to Heli-Coil
Heli-Coil is a brand of wire-thread inserts designed to repair or strengthen internal threads in softer materials (like aluminum) or fix damaged threads. These inserts create durable, high-strength threads that can be used in a variety of applications, including automotive, aerospace, and machinery.
What is a Heli-Coil?
A Heli-Coil is a coil-shaped wire insert made of stainless steel, formed into a helical shape to fit tightly into a tapped hole. When installed, the Heli-Coil becomes a part of the base material, providing a new, durable internal thread.
Key Characteristics:
Material: Typically made of corrosion-resistant stainless steel.
Shape: A tightly wound helical wire.
Purpose:
Repair damaged internal threads.
Strengthen threads in softer materials.
Prevent wear and tear in frequently used threads.
How Heli-Coil Works
Thread Repair: If an internal thread is stripped or damaged, a Heli-Coil restores it by providing a new, durable threaded surface.
Thread Reinforcement: In soft materials, such as aluminum or magnesium, a Heli-Coil insert prevents stripping and extends the life of the thread.
Steps to Use a Heli-Coil
Drill: Enlarge the damaged or existing thread hole to the required size.
Tap: Use a special Heli-Coil tap to create threads for the insert.
Insert: Screw in the Heli-Coil using a special installation tool.
Break the Tang: Remove the tang (the small tail used for installation) to allow for the screw to pass through fully.
Applications
| Industry | Use Case |
|---|---|
| Automotive | Repair stripped spark plug threads. |
| Aerospace | Reinforce threads in lightweight materials. |
| Machinery | Fix damaged bolt holes. |
| Consumer Products | Strengthen threads in plastic or wood parts. |
Advantages of Heli-Coil
| Feature | Benefit |
|---|---|
| Made of stainless steel | Resistant to corrosion and wear. |
| Increases thread strength | Ideal for soft materials like aluminum. |
| Easy to install | Minimal tools required for thread repair or reinforcement. |
| Wide range of sizes | Suitable for different bolt and thread specifications. |
How Heli-Coil Inserts Are Made
Material Selection: High-quality stainless steel wire is chosen for its strength and corrosion resistance.
Wire Formation: The wire is precisely shaped into a helical structure using specialized machines.
Surface Treatment: The formed wire is polished or coated (if required) to enhance durability.
Quality Control: Each insert undergoes rigorous testing to ensure dimensional accuracy and performance.
Heli-Coil vs. Regular Threads
| Feature | Heli-Coil | Regular Threads |
|---|---|---|
| Strength in soft materials | High | Low |
| Corrosion resistance | Excellent | Varies depending on material. |
| Repair capability | Can repair damaged threads | Must replace the entire component. |
Heli-Coil inserts are indispensable in situations where threads are frequently damaged or when additional thread strength is needed. If you need more detailed manufacturing steps or supplier recommendations, feel free to ask!
