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Stainless Steel Nyloc Nuts Nylon Insert Lock Nuts DIN 985 Standard Anti-Vibration Lock Nuts08.jpg
Stainless Steel Nyloc Nuts Nylon Insert Lock Nuts DIN 985 Standard Anti-Vibration Lock Nuts09.jpg
Stainless Steel Nyloc Nuts Nylon Insert Lock Nuts DIN 985 Standard Anti-Vibration Lock Nuts10.jpg
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Stainless Steel Nyloc Nuts Nylon Insert Lock Nuts DIN 985 Standard Anti-Vibration Lock Nuts12.jpg

304/316 Stainless Steel Nyloc Nuts - China Suppliers & Factory for Industrial Automotive Use, DIN 985 Standard

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Name: Nylon Lock Nut (Nylon Insert Lock Nut / Nyloc Nut)
Material: Crafted from AISI 304/316 stainless steel, known for its corrosion and rust resistance, alongside heat-resistant nylon inserts. Also available in Q235 and 45# steel options with nylon inserts for enhanced durability.
Standards: Manufactured in accordance with B/T 889.1, DIN 985, ISO 7040, and EN 1661 international standards.
Grade: Available in A2-70 (30and A4-80 (31stainless steel grades, as well as Grade 8 and Grade 10 options for carbon steel.
Specifications: Offered in sizes M2-M36, with custom sizes available to meet specific needs. 
Surface Treatment: Stainless steel variants feature natural polish or passivation treatment for corrosion resistance, while carbon steel versions come electro-galvanized (blue-white zinc or color zinc) or hot-dip galvanized options.
Design Features: Equipped with a nylon insert anti-loosening mechanism, these standard hexagonal nuts provide excellent corrosion resistance, complete specifications, and easy installation for various applications.
Applications: Ideal for use in the automotive industry, machinery manufacturing, construction engineering, and outdoor or marine environments, as well as for general assembly purposes.
Delivery Time: Typically 15-30 days upon receipt of advance payment.
Origin: Proudly manufactured in China, ensuring high-quality production standards.
Brand: JGD, a trusted name among suppliers.
Minimum Order Quantity: 10,000 pieces, negotiable based on customer needs.
Samples: Available for evaluation prior to bulk ordering.
Packaging: Packaged to customer specifications, including boxed, bulk, pallet, or customized packaging solutions.
OEM: Custom manufacturing options available to meet unique specifications.

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    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws01
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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.
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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 Capability
    🛠️ 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 & Corrosion Resistant

    🛡️ Multi-Material & Corrosion Resistant for Industrial & Automotive Use

    Our nylon insert lock nuts are available in 304/316 stainless steel (A2-70/A4-80) and carbon steel grades 8/10, paired with temperature-resistant nylon inserts. Polished and passivated stainless steel offers natural rust protection, ideal for outdoor and marine salt spray environments. Carbon steel options with galvanized finishes provide cost-effective anti-corrosion performance. Sizes range from M2 to M36 with coarse and fine thread options, meeting diverse strength and corrosion needs for automotive chassis, industrial machinery and construction projects.
    Nylon Insert Locking Design

    🔒 Nylon Insert Locking Design for Superior Vibration Resistance

    Manufactured to DIN 985 and ISO 7040 standards, the core design features a nylon insert that creates elastic clamping force on the bolt threads when tightened. This continuous grip effectively prevents loosening under vibration and alternating loads, ensuring reliable locking performance. The temperature-resistant nylon insert resists wear and aging, maintaining excellent anti-loosening properties even in high-vibration applications like automotive and industrial machinery for enhanced safety.
    Standard Design & Easy Installation

    🔧 Standard Design & Easy Installation for Versatile Bulk Assembly

    With a standard hex shape, these nuts install just like regular nuts using standard wrenches or torque tools, eliminating the need for additional lock washers or thread-locking adhesives to simplify assembly. Widely applicable in automotive, machinery manufacturing, construction and general assembly, they are ideal for engineering procurement, wholesale and factory bulk supply with complete specifications and stable stock.
    Application Scenarios
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    High-Quality Nylon Lock Nut Display
    Frequently Asked Questions
    ❓ What international standards do your nylon lock nuts comply with?
    Our products are strictly manufactured according to DIN 985 and ISO 7040 standards, ensuring global compatibility and high-performance locking reliability.
    ❓ Which materials are available for marine or high-corrosion environments?
    We recommend our 316 stainless steel (A4-80) nylon lock nuts for marine and salt spray environments, as they offer superior resistance to rust and chemical corrosion.
    ❓ What is the available size range for bulk orders?
    We provide a comprehensive range of sizes from M2 to M36, covering both coarse and fine thread options to meet various industrial and automotive requirements.
    ❓ How does the nylon insert prevent loosening under vibration?
    The nylon insert creates a tight elastic clamping force against the bolt threads during installation, providing a continuous grip that resists loosening from extreme vibrations and alternating loads.
    ❓ Do you offer customization for specific application needs?
    Yes, we offer flexible customization including special head/slot shapes, extra-large or long specifications, unique materials, and personalized surface treatment colors or packaging.