China Internal tooth lock washers Manufacturer, Supplier, Factory

When it comes to reliable and durable fastening solutions, our Internal tooth lock washers are engineered to deliver exceptional performance in demanding applications. Designed to prevent loosening under vibration and torque, these washers are essential for industries such as automotive, aerospace, and heavy machinery. We offer a variety of options to meet your specific needs, including Internal Teeth Lock Washers, which provide superior grip and resistance. For lighter-duty applications, our Light Type Single Coil Spring Lock Washers offer flexibility and ease of use. Additionally, we cater to diverse sizing requirements with our Extra Large Washer and Small Washer selections, ensuring a perfect fit for any project.


Our Internal tooth lock washers are crafted from high-grade materials to withstand extreme conditions and provide long-lasting security. The unique design of the Internal tooth lock washers features internal teeth that bite into the mating surface and the bolt head, creating a firm lock that resists rotation and loosening. This makes the Internal tooth lock washers ideal for high-vibration environments where traditional washers may fail. Available in various sizes and finishes, the Internal tooth lock washers can be customized to meet specific industry standards and requirements.

  • Material: Carbon steel, stainless steel, or alloy steel
  • Hardness: HRC 40-50 (depending on material)
  • Finish: Zinc-plated, galvanized, or plain
  • Temperature Range: -50°C to +300°C
  • Standards: Compliant with DIN, ANSI, and ISO specifications
Size (Inner Diameter mm) Outer Diameter (mm) Thickness (mm) Tooth Count
3 7 0.5 6
5 10 0.8 8
8 15 1.0 10
10 18 1.2 12
12 20 1.5 14

The Internal tooth lock washers are rigorously tested for tensile strength, corrosion resistance, and fatigue life to ensure they meet the highest quality benchmarks. With precise engineering and attention to detail, the Internal tooth lock washers provide a cost-effective solution for maintaining bolt preload and preventing mechanical failures.

Hot Products

  • Tight Nut

    Tight Nut

    A tight nut is a nut that self-locks and prevents the bolt from loosening. Xiaoguo® is a professional fastener manufacturer. The tight nut is one of the nuts with a simple design and strong durability. We can provide wholesale.
  • Heavy duty Carbon Steel Flat Washer

    Heavy duty Carbon Steel Flat Washer

    Technical support from Xiaoguo helps clients select appropriate components. Xiaoguo's engineers regularly recommend Heavy duty Carbon Steel Flat Washer for heavy-duty applications.
  • Carbon Steel Hexagonal Rivet Nut Column

    Carbon Steel Hexagonal Rivet Nut Column

    Efficient production processes help Xiaoguo® meet large order volumes.The carbon steel hexagonal rivet nut column is a robust, internally threaded fastener designed for creating strong load-bearing threads in sheet materials.
  • Uniformly Coated Galvanized Steel Wire

    Uniformly Coated Galvanized Steel Wire

    Uniformly Coated Galvanized Steel Wire stands as a key option for durable foundation materials in fastener production, with industry partners consistently choosing products from Xiaoguo®, a trusted manufacturer. Engineers frequently specify it for projects needing high strength and long-term corrosion protection.
  • Hexagon Nuts with Height 1.5d

    Hexagon Nuts with Height 1.5d

    Hexagon nuts with height 1.5d can be used in mechanical equipment, construction engineering, and automobile manufacturing. The height is 1.5 times the nominal diameter. Nuts produced by Xiaoguo® manufacturer can be used with standard bolts.
  • Vibration Defying Two Fold Self Locking Washers

    Vibration Defying Two Fold Self Locking Washers

    Typically, one mechanism in vibration defying two fold self locking washers involves radial teeth that grip the bearing surface, while the other involves an elliptical distortion that creates tension and friction against the bolt or nut. Meeting international standards is a core commitment for manufacturers at Xiaoguo®.

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