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China Stainless Steel Turnbuckle Hook & Eye Heavy Duty Wire Rope Tensioner - Top Suppliers & Factory Direct

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Name: Stainless Steel Turnbuckle (Turnbuckle / Rigging Screw)
Material: Crafted from AISI 304/316 stainless steel, known for its corrosion resistance and rust-proof properties, alongside Q235 carbon steel
Standards: Manufactured following ISO, GB/T 3818, GB/T 5975, DIN 1480, and US Federal Specification FF-T-791
Grade: Available in Stainless steel A2-70 (30/ A4-80 (31and Carbon steel 4.8 grade / 8.8 grade
Specifications: Sizes from M6 to M24 (customizable options available)
Surface Treatment: Features natural polishing for corrosion resistance; optional electro-galvanizing or hot-dip galvanizing for enhanced rust protection
Design Features: Engineered with a two-way adjustable structure, various end types, an open-body design, robust corrosion-resistant stainless steel, and high tensile strength
Applications: Ideal for outdoor engineering, marine projects, building curtain walls, lifting and hoisting tasks, and general assembly purposes
Delivery Time: 15-30 days upon receiving advance payment
Origin: China
Brand: JGD
Minimum Order Quantity: 10,000 pieces, negotiable
Samples: Available for evaluation
Packaging: Offered in Boxed/Bulk/Pallet options or customized packaging per clients' needs
OEM Services: Available upon request
Suppliers: JGD, a leading factory in China specializing in high-quality turnbuckles.

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    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws01
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    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws01

    Key Features

    Our self-tapping screws are crafted from food-grade 304 stainless steel and treated to achieve metric Grade 12.9 ultra-high strength, overcoming the traditional hardness limitations of standard stainless steel. Featuring a countersunk Phillips head design, these screws can be installed flush with the workpiece surface for a zero-profile finish, making them ideal for precision electronics and architectural decoration. We have optimized the thread geometry for different substrates (metal, wood) to ensure low-torque driving with high-torque clamping, effectively preventing stripping. As a superior alternative to standard Tek screws, these fasteners perform exceptionally well in thin sheet metal connections, providing an intelligent fastening solution that balances aesthetics with high load-bearing capacity.
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    Precision Manufacturing Process

    From wire rod to finished product, we strictly adhere to multiple international standards including ISO, DIN, ANSI, and GB. Utilizing multi-station cold forging technology, we ensure shank diameter tolerances are controlled within microns. Threads are formed through a precision thread rolling process to enhance fastening force. For non-standard requirements, we employ optical imaging sorters to reject minute defects like head cracks. In post-treatment, we offer a wide range of surface finishing options: from conventional zinc plating and nickel plating to highly corrosion-resistant Hot-Dip Galvanizing (H.D.G.), as well as decorative polishing and black anodizing. We even provide food-grade passivation treatment, ensuring every screw has a prolonged fatigue life in demanding environments.
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    Transparency & Customization

    As a source factory, we are committed to breaking down the information barriers of traditional trade. From mill certificates for raw materials to hardness grades (covering Grade 4.8 to Grade 12.9, as well as A2-70 and A4-80 marine-grade stainless steel), all test data is traceable. We support full-chain customization: dimensionally, we can adjust thread length and head thickness according to drawings; functionally, we can combine processes like sandblasting, electrophoretic coating (e-coating) , or chrome plating. Whether you need British Standard (BS) fasteners or require a special colored anodized finish, we offer small-batch sampling. This ensures that when you purchase fasteners from us, you not only receive high-quality products but also full transparency and control over the entire process, from material selection to packaging.
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    No Pre-Drilling · Rust Resistant · More Secure

    This stainless steel Phillips countersunk self-tapping screw, with its rust-resistant and corrosion-resistant material, one-step self-tapping design, and aesthetically pleasing countersunk head structure, has become the preferred solution for metal substrate fastening scenarios that is efficient, reliable, and aesthetically pleasing.
    Product Details

    Manufacturing Process

    Manufacturing Process

    • Multi Station Cold Heading Technology
    • Intelligent Heat Treatment System
    • Micron-Level Thread Rolling Process
    • Fully Automatic Optical Sorting
    • Environmentally Friendly Surface Treatment Line
    • Metallographic And Mechanical Joint Laboratory
    Quality Control System

    Quality Control System

    • Raw Material Source Locking
    • Furnace Number Batch Full Traceability
    • Third Party Material Certification
    • Process Parameters Open And Transparent
    • Salt Spray Test Real Time Monitoring
    • International Standard Compliance Declaration
    Flexible Customization Capability

    Flexible Customization Capability

    • Customizable head/slot Shapes
    • Extreme Application Of Special Materials
    • Breakthroughs In Extra Large/Long Specifications
    • Integrated Assembly Of Components
    • Customizable Surface Treatment Colors
    • Personalized Packaging And Labeling
    Technical Service

    Technical Service

    • On-Site Failure Analysis
    • Selection Calculation And BOM Optimization
    • Installation Tool Selection Guidance
    • Inventory Management (VMI) Trusteeship
    • Free Sample Making And Testing
    • International Standard Translation And Interpretation
    Multi-Material & Full-Size for Corrosion Resistance & Durability

    Multi-Material & Full-Size for Corrosion Resistance & Durability

    Available in AISI 304/316 stainless steel and carbon steel series. The 316 version resists salt spray corrosion, while carbon steel can be galvanized for enhanced rust protection. Sizes range from M6 to M36 with a breaking load of over 15 tons, suitable for marine, outdoor, and construction applications for long-lasting tension control.

    Bidirectional Adjustment Design for Easy & Efficient Operation

    Bidirectional Adjustment Design for Easy & Efficient Operation

    The open-body bidirectional design allows synchronous screw expansion/contraction by rotating the central body, enabling precise tension adjustment. Multiple end types (hook-hook, hook-eye, etc.) are available to fit various connections. Manual tightening without tools significantly improves construction efficiency.

    High-Tension Stable Structure for Safety & Reliability

    High-Tension Stable Structure for Safety & Reliability

    The one-piece open body and high-strength threads ensure stable tensile performance, resisting loosening under long-term dynamic loads. Stainless steel versions have no coating contamination, suitable for humid and salt spray environments; galvanized carbon steel options offer excellent rust resistance for lifting, curtain wall, and marine applications with sufficient safety redundancy.

    Application Scenarios

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    High-Quality Stainless Steel Turnbuckle Display

    Frequently Asked Questions

    What materials are the turnbuckles available in?
    Our turnbuckles are available in premium AISI 304 and 316 stainless steel, as well as high-strength carbon steel series. The 316 stainless steel version is highly recommended for marine and highly corrosive environments, while the carbon steel versions can be galvanized for enhanced rust protection.
    What are the available size ranges and load capacities?
    We provide a full range of sizes from M6 to M36. Depending on the size and material specification, our heavy-duty turnbuckles can support breaking loads of over 15 tons, making them ideal for demanding industrial and construction applications.
    How does the bidirectional adjustment design work?
    The turnbuckle features an open-body design with opposing left-hand and right-hand threads. By simply rotating the central body, you can synchronously expand or contract the ends, allowing for precise tension adjustments without twisting the attached ropes or cables.
    Can I request custom end-types and specifications?
    Yes, we offer flexible customization capabilities. You can choose from various end configurations (such as hook-hook, hook-eye, eye-eye, or jaw-jaw) and customize head/slot shapes, surface colors, and packaging to meet your specific application requirements.
    How do you ensure the quality of your turnbuckles?
    We enforce a strict quality control system, including raw material source locking, full traceability by furnace batch numbers, and third-party material certifications. Our processes also include real-time salt spray test monitoring to guarantee long-term durability and safety.