Get A Quote!
Leave Your Message
Stainless Steel Flange Hex Nuts08.jpg
Stainless Steel Flange Hex Nuts09.jpg
Stainless Steel Flange Hex Nuts10.jpg
Stainless Steel Flange Hex Nuts11.jpg
Stainless Steel Flange Hex Nuts12.jpg

China Suppliers Factory Flange Hex Nuts - 304/316 Stainless Steel, Serrated Anti-Loosening, DIN 6923 Standard

,

Name: Flange Hex Nut (Serrated Flange Nut)
Material: Made from high-quality AISI 304/316 stainless steel, known for its corrosion and rust resistance, as well as 45# steel / 10B21 alloy steel.
Standards: Manufactured according to GB/T 6177.1, DIN 6923, ISO 4161, and EN 1661 regulations.
Grade: Available in stainless steel grades A2-70 (30and A4-80 (316), as well as carbon steel grades 8 and 10.
Specifications: Ranging from M3 to M24, customizable to meet various needs.
Surface Treatment: Options include natural polishing, passivation treatment for enhanced corrosion resistance, electro-galvanizing (blue-white zinc/color zinc), hot-dip galvanizing, and Dacromet treatment, which improves rust prevention and wear resistance.
Design Features: Unique one-piece flange molding with a serrated anti-slip design, high-precision threads, and easy installation, made from durable, corrosion-resistant stainless steel.
Applications: Widely used in the automotive industry, machinery manufacturing, construction engineering, outdoor and marine applications, and general assembly.
Delivery Time: Typically 15-30 days after receiving advance payment.
Origin: Proudly manufactured in China.
Brand: JGD
Minimum Order Quantity: 10,000 pieces, negotiable depending on requirements.
Samples: Available for evaluation.
Packaging: Offered in boxed, bulk, pallet, or customized packaging options.
OEM: Factory direct OEM services available for bulk orders.

,
    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws01
    Contact us
    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws02
    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
    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws03
    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.
    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws04
    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws05
    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws06

    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.
    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws08
    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws07
    304 Stainless Steel Cross Recessed Countersunk Head Self-Tapping Screws03

    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 Series

    Multi-Material & Full Strength Series

    Our flange hex nuts are made of AISI 304/316/201 stainless steel or 45#/10B21 alloy steel, with strength grades including stainless steel A2-70 (304), A4-80 (316), and carbon steel grades 8/10. The 316 stainless steel variant offers excellent chloride corrosion resistance, passing ≥720 hours of salt spray testing to withstand coastal and humid environments. Carbon steel options with electro galvanizing, hot-dip galvanizing, or Dacromet coating balance high strength and rust/wear protection. Thread sizes range from M3 to M24 with custom options available.

    One-Piece Design

    One-Piece Flange + Serrated Anti-Slip Design

    Manufactured to international standards including DIN 6923, GB/T 6177.1, and ISO 4161, our nuts feature an integrated flange and serrated anti-slip base. The flange replaces flat washers to distribute pressure evenly and protect workpiece surfaces, while the serrated teeth bite into the contact surface during tightening to create a mechanical lock against vibration-induced loosening. This ensures stable performance in high-dynamic applications such as automotive chassis and vibrating machinery.

    Quick Install

    Washerless Quick-Install Design

    The one-piece structure eliminates the need for separate flat washers, simplifying installation: simply thread the nut onto the bolt and tighten with a standard wrench, with the flange providing automatic alignment. Stainless steel nuts with passivated/polished finishes are suitable for hygiene-sensitive applications, while galvanized carbon steel versions offer enhanced corrosion resistance for outdoor use. Widely applicable in general assembly, construction, and marine equipment.

    Application Scenarios

    Application 01
    Application 02
    Application 03
    Application 04
    Application 05

    High-Quality Stainless Steel Flange Nut Display

    Frequently Asked Questions

    What materials are available for your flange hex nuts?
    We offer AISI 304, 316, and 201 stainless steel, as well as 45# and 10B21 alloy steel with various strength grades (A2-70, A4-80, Grade 8/10).
    Do these nuts comply with international manufacturing standards?
    Yes, our products are manufactured according to DIN 6923, GB/T 6177.1, and ISO 4161 standards to ensure global compatibility.
    What is the advantage of the serrated flange design?
    The serrated base creates a mechanical lock that prevents the nut from loosening due to vibrations, making it ideal for automotive and machinery applications.
    Can you provide custom surface treatments?
    Absolutely. We provide electro-galvanizing, hot-dip galvanizing, Dacromet coating, passivation, and polished finishes to meet specific corrosion resistance needs.
    What thread sizes do you offer?
    Our standard range covers M3 to M24, but we also offer customization for extra-large or unique specifications as per your project requirements.
    Do you offer technical support for material selection?
    Yes, our technical service includes selection calculation, BOM optimization, and on-site failure analysis to ensure the best fastening solution.