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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
Stainless Steel Nyloc Nuts Nylon Insert Lock Nuts DIN 985 Standard Anti-Vibration Lock Nuts11.jpg
Stainless Steel Nyloc Nuts Nylon Insert Lock Nuts DIN 985 Standard Anti-Vibration Lock Nuts12.jpg

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

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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, along with a heat-resistant nylon insert. Options include Q235 and 45# steel paired with a nylon insert.
Standards: Compliant with B/T 889.1, DIN 985, ISO 7040, and EN 1661 regulations.
Grade: Available in A2-70 (30/ A4-80 (316), Grade 8 / Grade 10 (optional carbon steel options).
Specifications: Ranging from M2 to M36, with customizable sizes to meet your needs.
Surface Treatment: The stainless steel versions feature a natural polish or passivation treatment for enhanced corrosion resistance. Carbon steel versions can be finished with electro-galvanization (blue-white zinc or color zinc) or hot-dip galvanization (optional).
Design Features: Engineered with a nylon insert for superior anti-loosening capabilities, featuring a standard hexagonal shape for versatility. Known for corrosion resistance, complete specifications, and ease of installation.
Applications: Ideal for the automotive industry, machinery manufacturing, construction engineering, as well as outdoor and marine applications, and general assembly tasks.
Delivery Time: Typically 15-30 days following advance payment.
Origin: Produced in China, our factory ensures quality and reliability.
Brand: JGD
Minimum Order Quantity: 10,000 pieces, negotiable based on your requirements.
Samples: Samples available for evaluation.
Packaging: Offered in boxed, bulk, pallet, or custom packaging options.
OEM: Customized manufacturing services available.

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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.
    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws01
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    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws04

    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
    • Metallographic & Mechanical Laboratory
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    Quality Control System

    Quality Control
    • Raw Material Source Locking
    • Full Batch Traceability
    • Third Party Material Certification
    • Transparent Process Parameters
    • Real-time Salt Spray Monitoring
    • International Standard Compliance
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    Flexible Customization

    Customization Capability
    • Customizable Head/Slot Shapes
    • Special Material Applications
    • Extra Large/Long Specifications
    • Integrated Component Assembly
    • Custom Surface Treatment Colors
    • Personalized Packaging & Labeling
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    Technical Service

    Technical Service
    • On-Site Failure Analysis
    • BOM Optimization & Calculation
    • Installation Tool Guidance
    • Inventory Management (VMI)
    • Free Sample Making & Testing
    • Standard Translation & Interpretation
    Multi-Material Lock Nuts

    Multi-Material & Corrosion Resistant

    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.

    Vibration Resistance

    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.

    Easy Installation

    Standard Design & Easy Installation

    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

    Application 1Application 2Application 3Application 4Application 5

    High-Quality Nylon Lock Nut Display

    Frequently Asked Questions

    What makes nylon insert lock nuts better than standard nuts?
    The nylon insert creates a constant friction (prevailing torque) against the bolt threads, which prevents the nut from loosening due to vibration or shock, unlike standard nuts which require washers or adhesives.
    Are these nuts compliant with international standards?
    Yes, our lock nuts are manufactured strictly according to DIN 985 and ISO 7040 standards, ensuring global interchangeability and consistent quality.
    Can I use these nuts in marine or outdoor environments?
    Absolutely. For maximum corrosion resistance in marine or salt-spray environments, we recommend our 316 (A4-80) stainless steel options.
    Are the nylon inserts heat-resistant?
    Our nylon inserts are made from high-quality, temperature-resistant materials designed to maintain their locking properties under standard industrial operating temperatures.
    Do you offer customization for specific industrial needs?
    Yes, we provide flexible customization including special materials, extra-long specifications, custom head shapes, and specific surface treatments to meet unique engineering requirements.
    What size range do you supply?
    We maintain a stable stock of sizes ranging from M2 to M36, covering both coarse and fine thread requirements for various industrial applications.