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


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
• 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
• 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
• 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
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

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.
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.


















