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304 Stainless Steel Wedge Expansion Anchor Bolts - China Suppliers & Factory, M6-M16 Sizes, Heavy-Duty Applications

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Name: 304 Stainless Steel Mixed-Drive Wedge Expansion Anchor Bolt
Material: High-quality 304 Stainless Steel
Standard Compliance: ETAG 001, GB/T 22795
Grade: A2-70
Available Sizes: M6, M8, M10, M12, M14, M16 (Extended lengths ranging from 60mm to 200mm)
Surface Treatment Options: Electropolishing, Passivation, Natural Bright Finish
Design Highlights: Features a one-stop multi-drive head kit, corrosion-resistant wedge-shaped metal expansion structure, dense anti-slip knurling for enhanced grip, extended tube body for better performance, and robust construction for versatile installation options
Applications: Ideal for heavy-duty doors, windows, curtain wall projects, electromechanical and bracket fixing, exposed guardrails and safety facilities, thick substrate reinforcement, and aerated concrete block applications, as well as industrial warehousing and racking systems
Delivery Time: 15-30 days upon receipt of advance payment
Manufactured in China
Brand: JGD
Minimum Order Quantity: 10,000 pieces (negotiable)
Samples: Available upon request
Packaging: Offered in Boxed, Bulk, Pallet, or customized packaging options
OEM Services: Available for tailored solutions

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    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.

    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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    From Raw Materials to Completed Items

    Our factory's fully automated production lines for cold heading, precision thread rolling, controlled-atmosphere heat treatment, and environmentally friendly surface finishing enable closed-loop manufacturing from raw material to finished product. Thanks to inline optical sorting and a digital MES, every fastener meets stringent standards for strength, accuracy, and surface quality. Your assurance of high-quality fasteners: they are stable, effective, and environmentally friendly.
    工厂页

    Innovation Lab

    Expertise and collaboration drive us forward, constantly pursuing innovative solutions. Have a project? Let's get started.

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

    We provide more than just standard parts. From the beginning, our multicultural engineering team actively contributes to your project. We accurately analyze the application scenario and customize solutions in the lab, seamlessly integrating technology and application, to guarantee that innovative ideas are quickly transformed into practical solutions that reduce overall lifetime costs.
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    Integrated Verification System: Using "Test Data" to Ensure Innovation

    The creative process is not confined to the drawing board. Using our in-house technical center, we provide one-stop verification from corrosion testing to prototype development. Through thorough simulated working condition tests, we use empirical data to confirm the performance stability of customized solutions. This significantly reduces project risks and achieves truly reliable cost reduction and efficiency enhancement.
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    Quick Service Reaction

    After confirmation, intelligently schedule production utilizing digital quality control and agile supply chains to cut the delivery time of bulk orders by 30% using self-developed molds and flexible manufacturing lines to complete sampling and dispatch within 7 days. The first step in this procedure is to accurately identify the demands of the client and provide tailored solutions within a day. You can benefit from market opportunities for both standard bolts and custom-shaped parts with our "Demand-Solution-Sampling-Production" closed-loop solution.

    Frequently Asked Questions (FAQ)

    Q: What standards do Sichuan Jingguda Fasteners comply with?
    We specialize in high-precision, high-strength bolts, nuts, washers, and non-standard customized fasteners that cover international standards such as GB, DIN, ISO, ANSI, and ASME.
    Q: What is the factory's annual production output?
    Our factory spans an area of 8,000 square meters, operates over 70 internationally advanced production lines, and delivers an annual output of up to 50,000,000 tons.
    Q: How does your laboratory ensure fastener quality?
    We operate an in-house laboratory equipped with over 30 sets of precision testing equipment, including spectrometers, hardness testers, tensile testing machines, and salt spray testers to ensure strict quality control from raw materials to finished products.
    Q: Do you offer custom R&D and testing for specific project demands?
    Yes. We provide collaborative R&D with a multicultural engineering team to diagnose pain points and customize solutions. Our integrated verification system handles corrosion testing, prototype development, and simulated working condition tests.
    Q: What is your typical delivery time for custom and bulk orders?
    We provide customized solutions within a day. Using our self-developed molds and flexible manufacturing lines, we complete sampling and dispatch within 7 days. Our digital quality control and agile supply chains cut bulk order delivery times by 30%.
    Q: Which industries widely use Sichuan Jingguda Fasteners?
    Our fasteners are widely used across industrial machinery, renewable energy, automotive manufacturing, rail transportation, and other sectors requiring high precision, durability, and corrosion resistance.