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High tension bolt, Adhering to the principle of "Enterprising and Truth-Seeking, Preciseness and Unity", with technology as the core, our company continues to innovate, dedicated to providing you with the highest cost-effective products and meticulous after-sales service. We firmly believe that: we are outstanding as we are specialized.

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  • Galvanized Eye Anchor Bolt

    Galvanized Eye Anchor Bolt

    This Galvanized Eye Anchor Bolt has yellow zinc anti-corrosion coating and split expansion sleeve to create firm hold on concrete and brick. The integrated lifting ring fits load hanging, equipment fixing and hoisting work. All items pass tensile & salt spray inspection, various sizes are stocked for fast shipment. Ningbo Gangtong Zheli Fastener Co., Ltd accepts custom surface finishes for global buyers.
  • Zinc Plated Grade 4 Garde 8 Hex Flange Serrated Nut- DIN6923

    Zinc Plated Grade 4 Garde 8 Hex Flange Serrated Nut- DIN6923

    Gangtong Zheli is Zinc Plated Grade 4 Garde 8 Hex Flange Serrated Nut- DIN6923 manufacturers and suppliers in China who can wholesale it.
    Flange Nuts Standards:
    DIN 6923
    ASME/ANSI B 18.2.2-1986
    ASME/ANSI B 18.16.4-2008
    IFI 145 – 2002
    ASME/ANSI B 18.2.4.4M-1999
    JIS B1190-2005
    DIN 6927-1983 ( Prevailing torque type all-metal hexagon flange nut)
  • M8 Carbon Steel Zinc Plate Weld Eye Hook Screw

    M8 Carbon Steel Zinc Plate Weld Eye Hook Screw

    High quality M8 Carbon Steel Zinc Plate Weld Eye Hook Screw is offered by China manufacturer Gangtong Zheli. Welcome new and old customers to continue to cooperate with us to create a better future!
    Certification: ISO9001
    Place Of Origin: CHINA
    MOQ: 3000pcs
    Price: Negotiation
    Payment Terms: L/C, , T/T, Western Union,Paypal
    Supply Ability: 450tons Per Month
    Delivery Time: 15-20days Or 7days If In Stock
  • Sleeve Anchor Expansion Bolt

    Sleeve Anchor Expansion Bolt

    Sleeve Anchor Expansion Bolt is a heavy-duty fixing fastener for concrete, masonry and solid walls. Made of carbon steel with zinc plated surface, it features high strength, strong anchoring force and easy installation. It is widely used in construction, pipe, bracket, machinery and equipment fixing projects, providing stable and reliable fastening performance.
  • Structural Carbon Steel Heavy Hex Nuts

    Structural Carbon Steel Heavy Hex Nuts

    Our Structural Carbon Steel Heavy Hex Nuts suit high-load connections for construction and heavy machinery. Heat-treated carbon steel brings great hardness and tensile strength. Accurate threads guarantee tight assembly and stable clamping force. Perfect for long-term use under tough conditions. At Ningbo Gangtong Zheli Fasteners Co., Ltd., we make every item comply with strict industrial criteria for global engineering projects.
  • DIN933 A2-70 SS304 SS316 Stainless steel Full Threaded Hex Head Bolts Hex Cap Screws

    DIN933 A2-70 SS304 SS316 Stainless steel Full Threaded Hex Head Bolts Hex Cap Screws

    Gangtong Zheli is DIN933 A2-70 SS304 SS316 Stainless steel Full Threaded Hex Head Bolts Hex Cap Screws manufacturers and suppliers in China who can wholesale it.
    DIN933 Stainless steel Full Threaded Hex Head Bolts , Hex Cap Screws
  • Related Blog
  • Reviews

  • What is the difference between a wedge anchor and a sleeve anchor?

    ​In the field of construction and engineering, anchoring technology is an important part of ensuring the stability and safety of structures. Two common types of anchoring are wedge anchors and sleeve anchors. Understanding the difference between these two anchoring methods is essential for choosing the right anchoring solution.

  • Is DIN127 Spring Lock Washer Still the Most Reliable Anti-Loosening Fastener in Modern Engineering Applications

    In modern fastening systems, stability and vibration resistance are critical for mechanical safety. The DIN127 Spring Lock Washer is widely used across industrial assemblies, and companies like Gangtong Zheli continue to supply high-quality DIN127 Spring Lock Washer solutions to meet global fastening demands. This blog explores its structure, working principle, applications, and why it remains an essential component in mechanical engineering.

  • Which Anchor Truly Holds Your Project Together Wedge Anchor or Sleeve Anchor

    Today, I’ll draw on my 20 years of experience to break down the critical differences between the Wedge Anchor and its counterpart, the sleeve anchor. Getting this choice wrong isn’t an option—it’s the difference between a secure installation and a costly failure.

  • Do Sleeve Anchors Come with Any Warranties or Guarantees?

    Sleeve Anchor is a type of anchor that is primarily used to secure objects and fixtures to concrete, brick, or other materials. It is a versatile anchor that can be used in various applications, including electrical, plumbing, and construction.

  • How important is the proper rivet length for semi-tubular rivet applications?

    Semi-Tubular Rivets is a type of fastener that is similar to solid rivets but with one end that is open. These rivets are commonly used in applications where the back side of the installation is not accessible, such as in electrical components or in soft materials like leather. The open end of the rivet can be placed into a pre-drilled hole and often provides a cost-effective and aesthetically pleasing solution for joining materials.

  • Are High Strength Galvanized Hexagonal Bolts Suitable For Your Structural Projects?

    High Strength Galvanized Hexagonal Bolts maintain high repurchase rate in global engineering procurement markets relying on such comprehensive and reliable performance.

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