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304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws, Class 12.9 High Strength Tek Screws Available in M4.2, M5.5, M6.3

Name: Phillips Head Countersunk Self-Drilling Self-Tapping Screw
Material: 304/316 Stainless Steel
Standards: ISO, GB, BS, DIN, ANSI
Sizes: M3.5 / M4 / M4.2 / M4.8 / M5 / M6
Length: 13mm ~ 100mm (customizable)
Surface Treatment: Zinc plating, nickel plating, passivation, tin plating, sandblasting and anodizing, polishing, electrophoretic coating, hot-dip galvanizing (HDG), etc.
Design Features: Countersunk head design, self-drilling tail, self-tapping thread, stainless steel material
Applications: Steel structure engineering, architectural decoration, hardware furniture, outdoor facilities
Delivery Time: 15-30 days after receiving advance payment
Origin: Chengdu, 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 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.
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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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    Efficient Operation, Prevents Slippage

    We use a standard Phillips recess design with precisely controlled depth and angle, compatible with mainstream power tools to enhance installation efficiency. The recess is smooth and burr-free, ensuring tight engagement with the driver bit, effectively preventing slipping or stripping. Whether for manual or automated assembly, it enables quick fastening, improves work smoothness and safety, and is especially suitable for high-frequency usage scenarios.
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    Precise Structure, More Reliable Fastening

    The screw threads are fully formed with clear profiles and smooth surfaces, ensuring uniform engagement depth with nuts or base materials. The thread run-out is naturally finished to avoid jamming or seizing, improving installation smoothness. The optimized thread structure enhances tensile and torsional strength, maintaining stable fastening effect during long-term use and reducing the risk of loosening.
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    All-in-One, Stronger Connections

    The self-drilling tip features a sharp point design, allowing direct drilling, tapping, and fastening on materials such as metal or wood without pre-drilling, significantly improving construction efficiency. The drilling process is stable with smooth chip removal, minimizing material damage. After fastening, it offers excellent pull-out resistance and vibration resistance, ensuring connections are not easily loosened, ideal for vibration environments or high-strength applications.

    Factory Environment

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    High-Quality Stainless Steel Self-Tapping Screw Display 

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

    Chengdu Jingguda Trading 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 Material to Finished Product

    Our factory features fully 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 finished product. With inline optical sorting and a digital MES, every fastener meets stringent standards in strength, precision, and surface quality. Efficient, stable, and green—your guarantee of premium fasteners.

    Innovation Lab:

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

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

    We go beyond simply selling standard parts. Our multidisciplinary engineering team deeply intervenes in the front end of your project. By accurately diagnosing the application scenario, we customize solutions directly in the lab, seamlessly bridging technology and application to ensure innovative concepts are quickly transformed into practical solutions that reduce total lifecycle costs.
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    Integrated Verification System: Guaranteeing Innovation with "Test Data"

    Innovation goes beyond the drawing board. Relying on our in-house technical center, we provide one-stop verification from prototype development to corrosion testing. Through rigorous simulated working condition tests, we use empirical data to ensure the performance stability of customized solutions. This not only significantly reduces project risks but also achieves truly reliable cost reduction and efficiency improvement.

    Rapid Service Response

    Starting From Precise Capture Of Customer Needs, Delivering Customized Solutions Within 24 Hours; Leveraging Self-Developed Molds And Flexible Production Lines To Complete Sampling And Dispatch Within 7 Days; Upon Confirmation, Intelligently Schedule Production With Digital Quality Control And Agile Supply Chains To Reduce Bulk Order Delivery Time By 30%. Whether Standard Bolts Or Custom-Shaped Parts, Our Closed-Loop Service Of "Demand-Solution-Sampling-Production" Helps You Seize Market Opportunities.
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