Heavy Duty Zinc Plated Hollow Wall Toggle Anchor Bolt - 304 Stainless Steel & Carbon Steel | China Suppliers & Factory

Hollow Wall Toggle Anchor - Reliable Fasteners from Leading China Suppliers

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 (Available lengths: 30mm, 40mm, 50mm, 60mm, 80mm, Customization Available)

Surface Treatment: Eco-Friendly Blue-White Zinc / Yellow Zinc / Natural Stainless Steel

Design Features: Our unique folding petal-shaped winglets, hollow internal threaded structure, and thickened flange nut washers ensure superior performance. The anti-slip and anti-rotation design, coupled with high corrosion resistance materials, makes this fastener an excellent choice for various applications.

Applications: Ideal for plasterboard and lightweight partition (drywall) fixing, hollow brick/foamed concrete blocks, hollow sheet metal and metal profiles, as well as automotive and vehicle interior modifications.

Delivery Time: 15-30 days after receiving advance payment

Origin: China

Brand: JGD

Minimum Order Quantity: 10,000 pieces (negotiable)

Samples: Available upon request

Packaging: Boxed, Bulk, Pallet, or Customized Packaging Options

OEM Services: Available for customized solutions

Contact us today to source high-quality Hollow Wall Toggle Anchors from a trusted factory in China. As leading suppliers, we guarantee superior products tailored to meet your fastening needs!

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304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws02

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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304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws04

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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304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws06

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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304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws07

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

Our Core Advantages

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

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

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.

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.

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

High-Quality Stainless Steel Self-Tapping Screw Display

Frequently Asked Questions

Q1: What makes the Petal Wing design better than standard anchors?

The patented petal wings expand into an umbrella shape, providing a much larger bearing surface. This distributes the load evenly, making it ideal for thin or brittle materials like drywall and preventing pullout or wall collapse.

Q2: Are these anchors truly reusable?

Yes. The hollow internal threaded design allows you to remove and replace the screw while the anchor body remains securely in place. This is perfect for equipment that requires frequent maintenance or relocation.

Q3: What materials and coatings are available for corrosion resistance?

We offer carbon steel with blue-white or yellow zinc plating, as well as stainless steel options with natural passivation. These treatments ensure long-term durability in moist or mildly corrosive environments.

Q4: Can I request customized specifications for my project?

Absolutely. We provide flexible customization for head shapes, slot types, extra-large or extra-long specifications, and even personalized packaging and labeling to meet specific industrial requirements.

Q5: How do you ensure the quality of each batch?

We utilize a comprehensive quality control system including raw material source locking, full batch traceability by furnace number, automatic optical sorting, and real-time salt spray monitoring.

Q6: Do you provide technical support for selection?

Yes, we offer on-site failure analysis, BOM optimization, installation tool guidance, and free sample making to ensure you have the right fastening solution for your application.