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304/316 Stainless Steel Clevis Pin with Hole & Cotter Pin - China Suppliers & Factory for Mechanical Assembly

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Name: Hole-mounted Flat-Head Pins (Clevis Pin / Plug Pin / Cotter Pin Matching Pin / Hitch Pin)
Material: Durable AISI 304/316 Stainless Steel (corrosion-resistant and rust-resistant) and 5# Steel / 40Cr Alloy Steel
Standards: Complies with GB/T 882, GB/T 91, ISO 2341, DIN 1443, DIN 1444
Grade: Stainless Steel Grades A2 (30/ A4 (316), Carbon Steel Grades 8.8 / 10.9
Specifications: Available in sizes ranging from 3mm to 50mm (customizable to meet your needs)
Surface Treatment: Options include Natural Polishing / Passivation (no coating for corrosion resistance), Electro-Galvanizing / Hot-Dip Galvanizing / Blackening Treatment (optional for enhanced rust and wear resistance)
Design Features: Innovative perforated flat head structure, high-gloss shaft surface for superior corrosion resistance, various specifications available, and high tensile strength
Applications: Ideal for Mechanical Engineering, Lifting Equipment, Automotive and Trailers, Industrial Equipment, and Marine Engineering
Delivery Time: Typically 15-30 days after receiving advance payment
Origin: Proudly manufactured in China
Brand: JGD
Minimum Order Quantity: 10,000 pieces, negotiable
Samples: Available upon request
Packaging: Options for Boxed/Bulk/Pallet or customized packaging solutions
OEM: Customization options available
Looking for reliable suppliers for your hole-mounted flat-head pins? As a leading factory in China, we provide high-quality products tailored to your requirements.

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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

    Our Manufacturing Advantages

    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

    Flexible Customization

    • 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 & Interpretation
    Stainless Steel Clevis Pin
    Series 01

    Multi-Material & Full Strength Series for Demanding Conditions & Long Durability

    Our clevis pins are made of AISI 304/316 stainless steel or 45#/40Cr alloy steel, with strength grades including A2-70 (304), A4-80 (316), and carbon steel grades 8.8/10.9. The 316 stainless steel version offers exceptional chloride corrosion resistance, passing ≥720 hours of salt spray testing to withstand harsh coastal and humid environments. Carbon steel options with electro galvanizing, hot-dip galvanizing, or black oxide finishes balance high strength and rust/wear protection. With diameters ranging from 3mm to 50mm, they adapt to various load and application requirements.

    Precision Design Clevis Pin
    Series 02

    Standardized Precision Design for High Fit & Anti-Loosening Performance

    Manufactured to international standards including GB/T 882, ISO 2341, and DIN 1443, our pins feature a flat head with cross-hole and high-precision polished shaft. The smooth shaft minimizes wear during installation and operation, extending service life. When paired with cotter pins or R-clips, they provide dual anti-loosening security. The evenly distributed load on the flat head ensures stable performance under dynamic loads in lifting equipment and mechanical engineering, eliminating the risk of loosening or dislodgement for safe connections.

    Quick-Install Design Pin
    Series 03

    Quick-Install Design for Efficient Assembly Across Multiple Scenarios

    The cross-hole design allows fast locking with cotter pins: simply insert the pin through the clevis, secure it with a cotter pin spread open in the hole, and the connection is complete. No special tools are needed for disassembly, greatly improving assembly and maintenance efficiency. Customizable lengths suit applications from automotive trailers to marine equipment and industrial machinery. The low-friction polished shaft also reduces installation resistance, making them ideal for both mass production and on-site retrofits with excellent versatility.

    Application Scenarios

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    High-Quality Stainless Steel Self-Tapping Screw Display

    Frequently Asked Questions

    What materials are used in your clevis pins?
    Our clevis pins are manufactured from high-grade AISI 304/316 stainless steel or 45#/40Cr alloy steel. We offer strength grades including A2-70 (304), A4-80 (316), and carbon steel grades 8.8/10.9.
    How well do these pins resist corrosion in outdoor or coastal environments?
    Our 316 stainless steel version offers exceptional chloride corrosion resistance and successfully passes ≥720 hours of salt spray testing. For carbon steel options, we provide electro galvanizing, hot-dip galvanizing, or black oxide finishes to balance high strength with superior rust protection.
    What international standards do your precision clevis pins comply with?
    They are manufactured in strict compliance with major international standards including GB/T 882, ISO 2341, and DIN 1443, featuring a flat head with a cross-hole and a high-precision polished shaft.
    How does the quick-install design work?
    The cross-hole design allows for quick locking with cotter pins or R-clips. Simply insert the pin through the clevis and secure it with a cotter pin spread open in the hole. No special tools are required for disassembly, which greatly improves assembly and maintenance efficiency.
    What customization capabilities do you offer?
    We offer flexible customization capabilities including customizable head/slot shapes, extreme application of special materials, extra-large or extra-long specifications, integrated assembly of components, customizable surface treatment colors, as well as personalized packaging and labeling.
    Do you provide technical services and sample testing?
    Yes, our professional technical services include free sample making and testing, on-site failure analysis, selection calculation and BOM optimization, installation tool selection guidance, and inventory management (VMI) trusteeship.