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Helicoil Thread Repair Kit - Premium Quality from China Suppliers & Factory for Easy Installation and Long-lasting Repairs
Wire thread insert
Material: Most are made of high-quality 304 or 316 stainless steel, offering exceptional strength, elasticity, and excellent corrosion resistance. A few kits may be made of carbon steel (with surface treatment) or copper alloy.
Types: Typically available in free-running and screw-lock types. The screw-lock type has a tapered section in the middle of the insert, preventing loosening due to vibration.
Specifications: Sets typically focus on one or a few common sizes (e.g., M4-M8) and include inserts of various sizes.
Specialized Installation Tools
Tap: Used to create the specific threaded holes required for installing wire thread inserts. The tap is clearly marked with the corresponding wire thread insert size.
Insertion Tool: Typically a handle with a guide rod. The insert is placed on the guide rod and then rotated clockwise to insert it into the tapped hole.
Removal Tool: Used to remove damaged or improperly installed inserts. The guide rod is designed with reverse threads, allowing it to hook onto the insert's mounting handle and be removed by rotating counterclockwise.
What is included in a wire thread insert kit?
A standard kit includes wire thread inserts (usually made of 304 or 316 stainless steel) and specialized installation tools, including a tap, an insertion tool, and a removal tool.
What materials are wire thread inserts made of?
Most wire thread inserts are made of high-quality 304 or 316 stainless steel for exceptional strength and corrosion resistance. Some kits may use carbon steel or copper alloys for specific applications.
What is the difference between free-running and screw-lock inserts?
Free-running inserts provide a smooth, standard thread, while screw-lock inserts feature a tapered gripping coil in the center to prevent fasteners from loosening under heavy vibrations.
How do you install a wire thread insert?
First, create the thread using the kit's specialized tap. Next, place the insert onto the guide rod of the insertion tool and rotate it clockwise into the newly tapped hole.
How do you remove a damaged wire thread insert?
You can use the reverse-threaded removal tool included in the kit. The tool hooks onto the insert's mounting handle, allowing you to extract it by rotating counterclockwise.