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China Factory Suppliers Black Washer Head Torx Machine Screw with Blue Locking Patch for Vibration Resistance
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China Factory Suppliers Black Washer Head Torx Machine Screw with Blue Locking Patch for Vibration Resistance

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Our Round Head Washer Torx Machine Screws are expertly designed with a blue thread locking patch, ensuring stable load distribution and long-term vibration-resistant fastening. These screws are an ideal choice for various applications, offering durability and reliability.
Available Sizes: M0.8–M24 (custom drawing available)
Materials Offered:
- Stainless Steel (201/303/304/316/410/416/430)
- Carbon Steel (1008/1012/1018/1022/1035/1039/40Cr)
- Copper (H62/H65/H68)
- Aluminum (5056/6061/6063/7075)
- Alloy Steel (SCM435/10B21/6150/S2)
Surface Finishes:
Zinc, Nickel, Passivated, Tin
- Black Oxide, Anodized, Polished, Chrome
- Hot-Dip Galvanized (H.D.G)
As a leading factory and supplier in China, we are committed to providing high-quality fastening solutions to meet your needs. Contact us today to find out more!

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    5G communication

    5G Communication

    Automotive parts

    Automotive Parts

    Electronic devices

    Electronic Devices

    Metal frames and bracket systems

    Metal Frames & Bracket Systems

    Frequently Asked Questions

    Q What industries are supported by your 5G communication components?

    Our 5G communication components are designed for a wide range of industries, including telecommunications infrastructure, smart manufacturing, IoT deployments, and wireless network equipment. They are engineered to meet the high-frequency and high-precision requirements of next-generation connectivity solutions.

    Q What types of automotive parts do you manufacture or supply?

    We supply a comprehensive range of automotive parts including precision-machined structural components, connectors, housings, and functional assemblies. Our parts meet strict automotive industry standards and are suitable for both traditional combustion engine vehicles and new energy electric vehicles.

    Q Are your electronic device components RoHS and REACH compliant?

    Yes. All electronic device components we produce comply with RoHS and REACH environmental regulations. We prioritize the use of environmentally friendly materials and maintain thorough documentation to support our customers' compliance requirements in global markets.

    Q What materials are used for your metal frames and bracket systems?

    Our metal frames and bracket systems are manufactured using high-grade materials such as aluminum alloy, stainless steel, and carbon steel, depending on the application requirements. Surface treatments including anodizing, powder coating, and zinc plating are available to enhance durability and corrosion resistance.

    Q Can you provide custom solutions for these application areas?

    Absolutely. We offer fully customized manufacturing solutions across all four application areas — 5G communication, automotive parts, electronic devices, and metal frames & bracket systems. Our engineering team works closely with clients from design and prototyping through to mass production to ensure specifications are met precisely.

    Q What quality certifications do your products hold?

    Our products are manufactured under a certified quality management system, and we hold relevant certifications including ISO 9001. Depending on the product category, additional certifications such as IATF 16949 for automotive parts may apply. We conduct rigorous in-house testing and third-party inspections to guarantee consistent product quality.