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304/316 Stainless Steel Hex Nuts A2-70/A4-80 - China Suppliers & Factory Direct, DIN 934 Standard

Name: Hex Nut (Hexagon Nut)
Material: AISI 304/316 Stainless Steel (corrosion resistant, rust resistant), Q235, 45# Steel, Alloy Steel
Standards: GB/T 6170, DIN 934, ISO 4032, ANSI B18.2.2
Grade: A2-70 (304)/A4-80 (316), Grade 4/8/10/12 (Carbon steel optional)
Specifications: M1.6-M64 (customizable)
Surface Treatment: Stainless Steel: Natural Polished/Passivated (No Coating, Corrosion Resistant); Carbon Steel: Electroplated Zinc (Blue-White Zinc/...) Color zinc plating, hot-dip galvanizing, blackening treatment, Dacromet coating (optional)
Design Features: Standard hexagonal shape, high-precision threads, multiple material options, complete specifications, strong stability
Applications: Machinery manufacturing, construction engineering, automotive industry, outdoor and marine, general assembly
Delivery Time: 15-30 days after receiving advance payment
Origin: China
Brand: JGD
Minimum Order Quantity: 10,000 pieces, negotiable
Samples: Available
Packaging: Boxed/Bulk/Pallet or customized packaging
OEM: Available
Looking for reliable hex nut suppliers? Our factory in China offers high-quality hex nuts made from various materials, ensuring durability and versatility for industrial applications. With stringent manufacturing standards and customizable options, we cater to diverse client needs while providing excellent customer support. Contact us today for your hex nut requirements!

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    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws01

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

    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
    Quality Control System
    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
    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
    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

    Multi-Material & Multi-Grade Options for Corrosion Resistance & High Strength

    Our hex nuts are available in 304/316 stainless steel (A2-70/A4-80) and carbon steel grades 4/8/10/12, with materials including Q235, 45# steel and alloy steel. Polished and passivated stainless steel offers natural rust resistance, ideal for outdoor and marine salt spray environments. Carbon steel can be treated with galvanizing, black oxide or Dacromet coating for enhanced wear and corrosion protection. Sizes range from M1.6 to M64 with both coarse and fine thread options, fully suited for mechanical, construction and automotive applications.

    Stainless Steel Hex Nuts

    Standard Hexagon & Precision Threads for Reliable Grip

    Manufactured to GB/T 6170, DIN 934 and ISO 4032 standards, the standard hex shape fits all common wrenches for universal compatibility. High-precision rolled threads ensure uniform pitch and tight engagement with bolts, preventing slippage or loosening under vibration. Strict hardness and accuracy control deliver excellent tensile and anti-loosening performance, maintaining stable connections even under long-term heavy loads for high reliability.

    Precision Threads

    Complete Specifications & Easy Installation for Versatile Bulk Assembly

    With a full range of sizes and custom options available, these nuts work seamlessly with standard bolts and studs. Installation is flexible: they can be tightened manually or with torque wrenches for precise control, no special tools required. Widely used in machinery manufacturing, construction, automotive, marine equipment and general assembly, they are ideal for engineering procurement, wholesale and factory bulk supply with stable stock and delivery.

    Bulk Assembly

    Application Scenarios

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    High-Quality Hex Nut Display

    Frequently Asked Questions

    What materials are available for your hex nuts?
    We offer a wide range of materials including 304 and 316 stainless steel (A2-70/A4-80), as well as carbon steel in grades 4, 8, 10, and 12. Specialized alloy steels are also available for high-strength applications.
    Which international standards do your products comply with?
    Our manufacturing processes strictly adhere to global standards including DIN 934, ISO 4032, and GB/T 6170, ensuring universal compatibility and reliable performance.
    Can I request custom surface treatments?
    Yes, we provide various surface treatments such as galvanizing, black oxide, Dacromet coating, and custom color passivations to meet specific corrosion resistance or aesthetic requirements.
    Do you provide material traceability and certification?
    Absolutely. We implement full furnace number batch traceability and can provide third-party material certifications and compliance declarations for every order.
    What is the range of sizes you supply?
    We supply a comprehensive range of sizes from M1.6 up to M64, including both coarse and fine thread options to suit various industrial needs.