M10 Key Locking Thread Repair Kit

Key locking threaded inserts, also referred to as key inserts, keyserts, or keenserts, are designed to create strong and durable internal threads.

These inserts deliver a permanent and reliable threading solution in softer parent materials. They are easy to install and remove, making them ideal for repairing damaged threads in ferrous metals, non-ferrous metals, and materials such as aluminum and magnesium. However, they are not recommended for use in brittle materials like cast iron or certain plastics.

For thread repair applications, a key locking insert can effectively restore functionality when the damaged thread is replaced with an insert of the same nominal size.

Key locking inserts from Locking Inserts Tech Co., Ltd. feature solid locking keys that provide a secure mechanical lock, preventing rotation under vibration or torque. Installation is straightforward and can be completed using standard drills and taps, without the need for specialized tools.

In many applications, frequent assembly and disassembly can lead to thread wear over time, particularly in softer materials. Key inserts offer a long-lasting solution to this problem.

In addition, solid-style threaded inserts are available and can be used as plugs to correct or relocate incorrectly drilled or tapped holes.

Founded in 2009, Locking Inserts Tech Co., Ltd. has become a trusted manufacturer of high-quality fastening solutions. We offer a comprehensive range of steel and stainless steel key inserts in both metric and inch sizes. Our dedicated installation tools ensure precise alignment and fully recessed installation for optimal performance.

It provides a permanent anti-rotation locking effect through its integrated self-locking keys, ensuring reliable fastening performance even under extreme operating conditions. Designed as a solid, one-piece structure, the insert delivers excellent resistance to pull-out and rotational forces, and is securely installed into a pre-tapped hole.

Manufactured from high-quality stainless steel, it offers outstanding strength, durability, and long-term performance. The insert is highly resistant to vibration and wear, making it suitable for demanding environments.

This type of insert is widely used in applications where secure and stable fastening is critical, including mechanical assemblies, aerospace components, and vibration testing systems.

Key Locking Inserts by Locking Inserts Tech offer a reliable and efficient solution for repairing or strengthening stripped, damaged, or worn threads in various base materials. Once installed, these inserts create strong, permanent internal threads in a wide range of materials, while remaining fully compatible with standard tooling and other insert brands.

Designed with integrated locking keys, they provide a secure mechanical lock that prevents loosening or rotation under vibration and torque, ensuring long-term fastening performance in demanding applications.

We offer a complete selection of key locking inserts, including thin wall, heavy duty, extra heavy duty, and solid types to meet different engineering requirements.

Discover more high-quality fastening solutions in the Locking Inserts Tech product range. For detailed information or to get started, feel free to contact us or request a quote today.

Key-locking inserts are manufactured in accordance with a range of international industrial standards that define their precise dimensions, mechanical strength, and performance characteristics. Compliance with these standards ensures consistent quality, reliable repeatability, and compatibility with the requirements of various sectors, including Aerospace, Industrial, and Energy.

Below is a non-exhaustive list of relevant standards:

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