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China Key Locking Threaded Inserts - High-Strength Solutions from Leading Suppliers and Factory for Vibration Resistance
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China Key Locking Threaded Inserts - High-Strength Solutions from Leading Suppliers and Factory for Vibration Resistance

Introducing our high-strength Key Locking Insert, expertly crafted to provide permanent, reusable, and vibration-resistant threads in soft or previously damaged materials. When installed into a tapped hole, this innovative cylindrical threaded bushing features two to four hardened keys that securely anchor it against any rotation or axial movement. The mechanical anchoring system ensures exceptional pull-out and torque-out performance, outperforming traditional threaded inserts or tapped threads. As a leading supplier and factory in China, we are dedicated to delivering top-quality products that meet your needs for durability and reliability

    All keys are manufactured from the same alloy as the body and heat-treated to ≥ 40 HRC to ensure reliable cold-swaging into the parent material.
    Standard Body Icon

    Standard Body

    303 stainless steel for excellent machinability and corrosion resistance.
    Standard Body shape
    High-Corrosion Option Icon

    High-Corrosion Option

    316/316L stainless steel for marine, chemical, and food-grade environments.
    High-Corrosion Option shape
    High-Temperature Variant Icon

    High-Temperature Variant

    Inconel 718 or A286 for service up to 815 °C (1 500 °F).
    High-Temperature Variant shape
    Carbon-Steel Version Icon

    Carbon-Steel Version

    4140 alloy steel, zinc-nickel plated for cost-sensitive automotive and tooling applications.
    Carbon-Steel Version shape

    Frequently Asked Questions

    What material is used for the standard body version?

    The standard body is manufactured from 303 stainless steel, which provides excellent machinability and corrosion resistance.

    Which option is best for marine and chemical environments?

    For marine, chemical, and food-grade environments, the High-Corrosion Option made of 316/316L stainless steel is highly recommended.

    What is the maximum temperature limit for the High-Temperature Variant?

    The High-Temperature Variant (made of Inconel 718 or A286) is designed for service temperatures up to 815 °C (1 500 °F).

    What are the characteristics of the Carbon-Steel Version?

    The Carbon-Steel Version is made of 4140 alloy steel and is zinc-nickel plated, making it suitable for cost-sensitive automotive and tooling applications.

    How hard are the keys, and why is this important?

    All keys are heat-treated to a hardness of ≥ 40 HRC. This ensures reliable cold-swaging of the keys directly into the parent material.

    Are the keys and the body made of the same alloy?

    Yes, all keys are manufactured from the same alloy as the body to maintain material consistency and optimal performance.