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304 Stainless Steel Carbon Steel Heavy Duty Zinc Plated Hollow Wall Petal Toggle Anchor Bolt Expansion Fixing Screw

Name: Hollow Wall Toggle Anchor / Petal Expansion Fastener
Material: High Strength Carbon Steel / 304 Stainless Steel
Standards: DIN 965、GB/T 819
Grade: Grade 4.8 / Grade 8.8, Stainless Steel: A2-70 (304)
Specifications: M4-M10 (Lengths 30mm, 40mm, 50mm, 60mm, 80mm, Customization Available)
Surface Treatment: Environmentally Friendly Blue-White Zinc / Yellow Zinc / Natural Stainless Steel (Natural)
Design Features: Unique folding petal-shaped winglets, hollow internal threaded structure, thickened flange nut washers, anti-slip and anti-rotation design, superior materials and corrosion resistance.
Applications: Plasterboard/lightweight partition (drywall) fixing, hollow brick/foamed concrete blocks, hollow sheet metal and metal profiles, automotive and vehicle interior modification.
Delivery Time: 15-30 days after receiving advance payment
Origin: China
Brand: JGD
Minimum Order Quantity: 10,000 pieces, negotiable
Samples: Available
Packaging: Boxed/Bulk/Pallet or customized packaging
OEM: Available

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    Key Features

    Our hollow wall petal expansion anchors (toggle anchors / flip anchors) are made of high‑strength carbon steel (Grades 4.8/8.8) or 304 stainless steel (A2-70). The innovative folding petal wings – after passing through the hollow wall, they automatically unfold like petals, creating a large‑area support against the back of the wall. The built‑in hollow threaded sleeve allows removal and reuse. The thickened flange nut washer prevents slipping and sinking into the wall surface. Sizes M4‑M10, lengths 30‑80mm custom. Suitable for drywall/lightweight partitions, hollow bricks, hollow metal sections, and automotive interior modifications. Installation: drill → insert anchor → pull with the tool → petals unfold → screw in the fastener.
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    Precision Manufacturing Process

    We use a cold heading + stamping + assembly composite process. The petal wings are precision stamped using a progressive die, ensuring symmetrical and consistent unfolding angles. The hollow threaded sleeve is multi‑station cold headed and precision tapped (6H accuracy). Stainless steel parts are solution treated and passivated; carbon steel parts undergo mesh belt furnace quenching + tempering (Grade 8.8: HRC 22-32). Surface finishing: carbon steel – blue‑white/yellow zinc (72h salt spray) or Dacromet; stainless steel – natural polish. Each batch is sampled for unfolding performance (unfolded diameter & load in simulated hollow wall), tensile strength, and salt spray test, complying with GB/DIN standards.
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    Transparency & Customization

    Each bag of anchors comes with a full inspection report (material spectroscopy, hardness, unfolding force, salt spray duration). The package QR code traces back to the stamping die number, cold heading machine, and assembly line. Our website shows installation videos and failure cases (e.g., petals not unfolding, thread stripping).

    Customization options: Accept non‑standard length, thread size (M3‑M12), petal diameter, and wing count (4‑wing/6‑wing). Material can be 316 stainless steel or all‑stainless (carbon steel‑free). Surface treatment offers “decorative grade” colour zinc (black/blue/yellow). Dedicated installation tools available. Mixed standards (GB/DIN/ANSI) supported. Minimum order quantity: 5,000 pieces; sample lead time 7 days. Upload a drawing for a 24‑hour DFM analysis and quotation.

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    Petal Expansion · Hollow Wall · Reusable

    Carbon steel zinc-plated or 304 stainless steel hollow wall petal anchor. Folding petal wings automatically expand after passing through hollow wall, forming large back-surface support. Built-in threaded insert allows removal and reuse. For drywall, hollow brick, sheet metal, auto interiors. Sizes M4-M10, length customizable.
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    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
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    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
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    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
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    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
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    Large Bearing Surface with Petal Wings – Pullout Resistant

    The patented foldable petal wings automatically expand into an umbrella shape after passing through hollow walls (drywall, hollow bricks, metal studs), closely hugging the back surface with a large bearing area – far superior to ordinary expansion sleeves. Even on thin or brittle wall materials, the load is evenly distributed, preventing local tearing or collapse. Combined with a thickened flange nut washer that prevents front-side sink-in, double protection ensures secure anchoring with zero pullout risk.
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    Hollow Built-in Thread – Removable & Reusable

    The hollow internal threaded design separates the screw from the anchor body. When disassembly is needed, simply remove the screw while the petal wings remain behind the wall – reinstallation only requires driving a new screw into the existing anchor body. Compared to single-use expansion tubes, this drastically reduces consumable costs, especially ideal for frequently serviced equipment brackets and interior modification applications.
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    Wear & Corrosion Resistant – Long Service Life

    Carbon steel versions with blue-white/yellow zinc plating, stainless steel with natural passivation – multi-layer protection resists moisture and mild corrosive environments. The petal wings have no sharp notches during expansion and withstand repeated bending without fatigue fracture. Proven in durability tests, this anchor maintains stable clamping force under vibration or temperature changes. Used in drywall ceilings, automotive interiors, or lightweight partitions, it requires minimal replacements and offers easy maintenance.

    Factory Environment

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    High-Quality Stainless Steel Self-Tapping Screw Display 

    Precision Fastening, Engineered for the Future – Sichuan Jingguda Fasteners  Co., Ltd., Your Trusted High-Quality Fastener Expert

    Sichuan Jingguda Fasteners Co., Ltd. is a professional fastener manufacturer integrating R&D, production, and sales. We specialize in high-precision, high-strength bolts, nuts, washers, and non-standard customized fasteners, covering international standards such as GB, DIN, ISO, ANSI, and ASME. Equipped with multi-station cold heading machines, high-speed thread rolling machines, fully automated heat treatment lines, and surface treatment equipment, we also operate an in-house laboratory featuring spectrometers, hardness testers, tensile testing machines, and salt spray testers to ensure strict quality control from raw materials to finished products. Our products are widely used in industrial machinery, renewable energy, automotive manufacturing, rail transportation, and more, known for their precision, corrosion resistance, and durability. Committed to “Fast Delivery, Professional Support,” we provide one-on-one customized solutions and efficient logistics, striving to be your ideal partner for reliable connections.

    Industrial Capabilities

    • Factory Area: 8,000 square meters
    • Certifications: ISO, IATF, CE, RoHS, JIS, ASTM
    • Manufacturing : 70+ internationally advanced production lines
    • Testing: 30+ sets of precision quality testing equipment
    • Annual Output: Up to 50,000,000 tons  
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    工厂页

    From Raw Materials to Completed Items

    Our factory offers completely automatic production lines for cold heading, precision thread rolling, controlled-atmosphere heat treatment, and eco-friendly surface finishing, enabling closed-loop manufacturing from raw material to final product. Every fastener satisfies strict requirements for strength, accuracy, and surface quality thanks to inline optical sorting and a digital MES. Your assurance of high-quality fasteners: they are stable, effective, and environmentally friendly.

    Innovation Lab:

    Expertise and teamwork drive us ahead, continually exploring innovative solutions. Do you have a project? Now let's begin.

    Collaborative R&D in Full Process: From "Pain Point Diagnosis" to "Customized Implementation"

    We offer more than just ordinary parts. Our diverse engineering team actively participates in your project from the outset. By precisely assessing the application scenario, we customize solutions directly in the lab, seamlessly connecting technology and application to ensure creative concepts are promptly translated into practical solutions that decrease total lifecycle costs.
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    Integrated Verification System: Using "Test Data" to Ensure Innovation

    Innovation goes beyond the drawing board. We offer one-stop verification from prototype development to corrosion testing by utilizing our internal technical center. We employ empirical data to verify the performance stability of tailored solutions through rigorous simulated working condition tests. This accomplishes genuinely dependable cost reduction and efficiency enhancement in addition to drastically lowering project dangers.

    Quick Service Response

    Using Self-Developed Molds and Flexible Production Lines to Complete Sampling and Delivery Within 7 Days; After Confirmation, Intelligently Schedule Production Using Digital Quality Control And Agile Supply Chains To Cut Bulk Order Delivery Time By 30%. Our "Demand-Solution-Sampling-Production" closed-loop service helps you take advantage of market opportunities for both standard bolts and custom-shaped parts.
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