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Key Locking Threaded Insert - High-Strength Solution from China Suppliers & Factory for Vibration Resistance
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Key Locking Threaded Insert - High-Strength Solution from China Suppliers & Factory for Vibration Resistance

Introducing our high-strength Key Locking Insert, expertly designed to provide permanent, reusable, and vibration-resistant threads in soft or previously damaged materials. Manufactured in China, our inserts offer superior durability and performance. After being inserted into a tapped hole, two to four hardened keys lock the insert securely against rotation and axial movement, ensuring remarkable pull-out and torque-out performance that surpasses conventional threaded inserts or tapped threads alone. As a leading supplier in the industry, our factory uses advanced engineering to deliver reliable solutions tailored to your needs. Choose our Key Locking Inserts for enhanced thread integrity and long-term 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.
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    Standard Body

    303 stainless steel for excellent machinability and corrosion resistance.
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    High-Corrosion Option

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

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

    4140 alloy steel, zinc-nickel plated for cost-sensitive automotive and tooling applications.
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    Frequently Asked Questions
    Q What material is used for the Standard Body option?
    The Standard Body is manufactured from 303 stainless steel, which offers excellent machinability and reliable corrosion resistance.
    Q Which option is recommended for marine or chemical environments?
    For marine, chemical, and food-grade environments, the High-Corrosion Option made of 316/316L stainless steel is recommended.
    Q What is the maximum temperature limit for the High-Temperature Variant?
    The High-Temperature Variant, constructed from Inconel 718 or A286, is designed for service temperatures up to 815 °C (1 500 °F).
    Q What are the applications and materials of the Carbon-Steel Version?
    The Carbon-Steel Version is made of 4140 alloy steel with a zinc-nickel plating, ideal for cost-sensitive automotive and tooling applications.
    Q Are the keys made of a different material than the body?
    No, all keys are manufactured from the same alloy as the body and are heat-treated to ≥ 40 HRC to ensure reliable cold-swaging into the parent material.