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Black Coated 410 Stainless Steel Phillips Self-Drilling Screws - China Suppliers, Factory Grade Fasteners

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Introducing our high-quality Black 410 SS Phillips Pan Head Self-Drilling Tek Screw, made from durable 410 Stainless Steel and Medium Carbon Steel. As a leading manufacturer and supplier in China, we adhere to international standards, including DIN 7504-P, ISO 15480, and GB/T 15856.Our screws are graded at 410 (High Hardness HV 400-500) and 8.8-10.9 Grade Carbon Steel, ensuring optimal performance and longevity.

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Available specifications include M4.2 (#8), M4.8 (#10), M5.5 (#12), and M6.3 (#1with lengths ranging from 13mm to 150mm. The environmentally friendly black zinc and black anodized surface treatment not only enhance appearance but also provide corrosion resistance.

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Key design features include a hardened self-drilling tip, cross-groove pan head design, and anti-slip high-engagement self-tapping threads. Our screws are perfect for a variety of applications such as light steel keel frame and ceiling assembly, electrical enclosures, automotive aftermarket parts, and modern minimalist furniture assembly, showcasing their versatility.

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As a trusted China factory, we offer a minimum order quantity of 10,000 pieces, which is negotiable. Samples are available upon request, and we provide multiple packaging options including boxed, bulk, pallet, or customized solutions. Our efficient delivery time is 15-30 days after receipt of advance payment.

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Choose our Black 410 SS Phillips Pan Head Self-Drilling Tek Screw for your construction and assembly needs, and experience the quality and reliability offered by a leading supplier!

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    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws01
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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.
    Product Details

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    Manufacturing Process
    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
    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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    Customization
    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
    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
    Core Product Advantages
    Dual-Material Options
    Dual-Material Options – 410 SS or Carbon Steel

    Available in 410 stainless steel (HV 400-500, high torque for heavy metal penetration) or medium carbon steel (Grade 8.8-10.9). 410 grade penetrates light-gauge steel without tip breakage; carbon steel with black oxide offers durability and economy. Dual materials cover various project budgets and conditions.

    Black Zinc Coating
    Black Zinc/Black Oxide Coating – Stealth Aesthetics

    Finished with eco-friendly black zinc or black oxide, delivering a uniform matte black finish that resists moisture and salt spray. Strong adhesion with no chipping – color stays stable and rust-free. Seamlessly blends with black sheet metal enclosures and modern automotive interiors.

    Phillips Pan Head
    Phillips Pan Head + Hardened Self-Drilling Tip

    The Phillips pan head fits standard tools with high torque and no cam-out. The hardened self-drilling tip completes drilling, tapping, and fastening in one step. Anti-slip high-bite threads securely grip metal, wood, and plastic, resisting vibration and loosening.

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    High-Quality Screw Display
    Frequently Asked Questions
    What is the difference between 410 SS and Carbon Steel options?
    410 Stainless Steel offers higher hardness (HV 400-500) and superior corrosion resistance, ideal for penetrating heavy metals. Carbon Steel is a cost-efficient alternative for general assembly where high-strength Grade 8.8-10.9 is required.
    Do these self-drilling screws require a pilot hole?
    No, our hardened self-drilling tips are designed to drill, tap, and fasten in one single operation, significantly improving installation efficiency on light-gauge steel and plastics.
    How rust-resistant is the black zinc coating?
    Our black zinc/oxide coatings are tested with real-time salt spray monitoring to ensure high resistance to moisture and industrial corrosion, making them suitable for both indoor and outdoor applications.
    Can I request custom head shapes or packaging?
    Yes, we provide flexible customization for head/slot shapes, special materials, personalized labeling, and specific packaging requirements to meet your project needs.
    Do you provide technical support for product selection?
    Absolutely. We offer on-site failure analysis, selection calculations, BOM optimization, and free sample making to ensure you use the most effective fastener for your application.