If you’re a mechanic or engineer, you’ve likely encountered the frustration of stripped threads. This can be a major inconvenience, especially if the threads are in a critical location. In the past, the only way to repair stripped threads was to replace the entire component. However, with the advent of Helicoils, this is no longer necessary.
Helicoils are wire inserts that are designed to repair stripped threads. They are made from a variety of materials, including stainless steel, bronze, and aluminum. Helicoils are available in a variety of sizes to fit different thread sizes. Using Helicoils to repair stripped threads is a relatively simple process. First, the stripped threads must be cleaned and tapped to the correct size. Then, the Helicoil can be inserted into the threads. Finally, the Helicoil can be secured in place with a set screw.
Helicoils are a reliable and effective way to repair stripped threads. They are easy to use and can be installed in a matter of minutes. Helicoils are also strong and durable, and they can withstand high levels of stress. This makes them a great option for repairing threads in critical locations. If you’re looking for a way to repair stripped threads, Helicoils are a great option. They are easy to use, reliable, and durable.
Installing the Helicoil Insert
Inserting the Helicoil is a crucial step that requires precision and care. Here’s a detailed guide to help you complete the process effectively:
1. Prepare the Tapped Hole:
Clean the tapped hole thoroughly with a tap brush or compressed air to remove any debris or metal shavings.
2. Apply Thread Sealer:
Apply a small amount of thread sealant to the threads of the Helicoil insert to prevent leaks and ensure a secure connection.
3. Insert the Insert:
Use the provided insertion tool to carefully align and thread the Helicoil insert into the tapped hole. Gently turn the tool clockwise while applying slight pressure.
4. Set the Insert:
Once fully inserted, use the tang break-off tool to firmly set the insert in place. Apply downward pressure and gently twist the tool to break the tangs, which hold the insert securely in the hole.
5. Inspect the Installed Insert:
Visually inspect the installed insert for any distortion or damage. Ensure it sits flush with the surrounding surface.
6. Tap the Insert (Optional):
In certain applications, it may be necessary to tap the installed insert to create new internal threads. Use the appropriate tap size and direction to carefully tap the insert. This step ensures a precise and snug fit for mating components.
| Recommended Tap Sizes for Common Bolt Diameters |
|---|
| Bolt Diameter (mm) | Recommended Tap Size (mm) |
| 3 – 4 | 3.3 |
| 5 – 6 | 5.2 |
| 8 – 10 | 8.3 |
| 12 – 14 | 11.5 |
Cleaning the Installed Helicoil Insert
After the Helicoil insert is installed, it is important to clean it thoroughly to prevent corrosion and ensure optimal performance. Here are the steps involved in cleaning an installed Helicoil insert:
- Apply penetrating oil: Apply a penetrating oil, such as WD-40 or Kroil, to the Helicoil insert and surrounding area. This will help to loosen any dirt, debris, or metal shavings that may be present.
- Use a wire brush: Use a small wire brush to gently remove any loose dirt or debris from the Helicoil insert. Be careful not to damage the insert.
- Wipe clean: Wipe the Helicoil insert with a clean cloth or paper towel to remove any remaining oil or debris.
- Apply thread sealant: Apply a small amount of thread sealant to the threads of the Helicoil insert. This will help to prevent leaks and ensure a secure connection.
- Reinstall the bolt: Reinstall the bolt into the Helicoil insert. Tighten the bolt to the specified torque using a torque wrench.
- Check for leaks: Apply a small amount of oil or leak detector to the area around the Helicoil insert. Check for any leaks. If there are any leaks, retighten the bolt or apply additional thread sealant.
- Lubricate the bolt: Apply a small amount of lubricant to the threads of the bolt. This will help to prevent the bolt from seizing in the Helicoil insert.
Additional Tips for Cleaning the Helicoil Insert:
- If the Helicoil insert is heavily soiled or corroded, it may be necessary to use a stronger cleaning agent, such as carburetor cleaner.
- Be sure to wear gloves and eye protection when cleaning the Helicoil insert.
- Do not use a wire brush with stiff bristles, as this could damage the Helicoil insert.
- Allow the Helicoil insert to dry completely before applying thread sealant and reinstalling the bolt.
How to Use a Helicoil
A Helicoil is a type of threaded insert that is used to repair damaged or stripped threads in metal components. It is a helical coil made of stainless steel or other high-strength material that is inserted into the damaged threads and held in place by its own tension. Helicoils are available in a variety of sizes and thread types to fit most common applications.
To use a Helicoil, the following steps should be followed:
- Drill out the damaged threads. The first step is to drill out the damaged threads using a drill bit that is slightly larger than the outside diameter of the Helicoil.
- Tap the hole. Once the threads are drilled out, the hole should be tapped using a tap that matches the thread size of the Helicoil.
- Insert the Helicoil. The Helicoil should be inserted into the tapped hole using a special insertion tool. The insertion tool should be turned clockwise until the Helicoil is fully seated.
- Break off the tang. Once the Helicoil is inserted, the tang should be broken off using a pair of pliers.
- Install the bolt or screw. The bolt or screw can now be installed into the Helicoil.
Helicoils are a simple and effective way to repair damaged threads. They can be used in a variety of applications, including automotive, marine, and industrial.
People Also Ask
What is a Helicoil?
A Helicoil is a type of threaded insert that is used to repair damaged or stripped threads in metal components.
How do I use a Helicoil?
To use a Helicoil, the following steps should be followed:
- Drill out the damaged threads.
- Tap the hole.
- Insert the Helicoil.
- Break off the tang.
- Install the bolt or screw.
What are the benefits of using a Helicoil?
Helicoils offer a number of benefits, including:
- They are a simple and effective way to repair damaged threads.
- They can be used in a variety of applications.
- They are made of high-strength materials that are resistant to wear and tear.
