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Heavy Duty Yellow Plastic Wall Anchors with Screws - Multi-Grip Expansion Plugs from China Suppliers and Factory

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Name: Nylon Plastic Expansion Anchor & Screw Kit
, Material: Plastic Tube: PA6/PA66 or PE; Screw: Carbon Steel/Stainless Steel (201/304)
, Standards: DIN 7997
, Grade: Screws typically range from 4.8-8.8 grade carbon steel, with stainless steel available in A2-70
, Specifications: Expansion Tube Sizes: 6mm-14mm (Length: 30mm-100mm), Matching Screws: M4-M10
, Surface Treatment: Plastic Tube: Engineering Natural/Yellow/White; Matching Screws: Environmentally Friendly Blue-White Zinc/Yellow Zinc/Stainless Steel with Natural Polished Finish
, Design Features: Fish Scale/Spiral Anti-Slip Outer Ribs, Flexible Longitudinal Expansion Grooves, Explosion-Proof and Crack-Resistant Durable Materials, Flange Anti-Settlement Edges, Ready-to-Use Kit Configuration
, Applications: Ideal for Light-Duty Home Improvement Fixtures, Bathroom and Kitchen Hardware, Electrical Junction Box Installation, Lightweight Building Materials, Furniture and Panel 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
, With a reputable manufacturing facility in China, we are trusted suppliers of high-quality Nylon Plastic Expansion Anchors and Screws, designed to meet various construction and DIY needs. Explore our products for durable and efficient solutions tailored to your specific 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
    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.
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    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.
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    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.

    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 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-Grip Anti-Slip Ribs
    Multi-Grip Anti-Slip Ribs for Strong Holding Power

    The outer wall features fish-scale/spiral anti-slip ribs that embed into the hole wall from multiple directions during insertion, creating a "multi-grip" bite far superior to ordinary smooth sleeves. Whether in brick, concrete, or drywall, it delivers 360° uniform grip, effectively preventing the anchor from spinning or loosening. Combined with a flange anti-sink rim, the sleeve won't sink into the wall when tightened – ensuring a flush, secure installation, with light-load hanging as stable as a rock.

    Expansion Slots
    Flexible Longitudinal Expansion Slots – Crack & Burst Resistant

    The sleeve is designed with flexible longitudinal expansion slots that expand evenly outward as the screw is driven in, allowing the wall to tightly contact every part of the hole wall with uniform stress distribution – preventing localized stress concentration that could crack or burst the substrate. The nylon/PE material offers elasticity to adapt to hole tolerances, even if the drill hole is slightly oversized. Ideal for brittle substrates like hollow blocks, aerated concrete, or drywall – worry-free installation.

    Aging-Resistant Sleeve
    Aging-Resistant Sleeve & Multi-Protection Screws

    Industrial-grade nylon (PA6/PA66) or HDPE sleeve resists impact and wear, does not age or become brittle easily, with a service life of decades. Matching screws are available in carbon steel zinc-plated (blue-white/yellow zinc) or 201/304 stainless steel (A2-70), effectively resisting moisture and mild corrosion. The complete kit comes ready to use – no need to source separate screws. Long-term mounting of hardware, electrical boxes, or bathroom fittings – no rust, no failure.

    Factory Environment

    High-Quality Stainless Steel Self-Tapping Screw Display

    Frequently Asked Questions (FAQ)
    What advanced technologies are used in your manufacturing process?
    We utilize Multi-Station Cold Heading Technology, Intelligent Heat Treatment Systems, and a Micron-Level Thread Rolling Process to ensure precision and durability in every fastener.
    How do you ensure the quality of your anchors and screws?
    Our Quality Control System includes raw material source locking, full traceability of furnace numbers, third-party material certification, and real-time monitoring of salt spray tests.
    Are the anchors suitable for brittle substrates like drywall or aerated concrete?
    Yes. Our sleeves feature flexible longitudinal expansion slots that distribute stress uniformly, preventing localized concentration that could crack or burst brittle substrates.
    What prevents the anchors from spinning or loosening in the wall?
    The outer walls are designed with fish-scale and spiral anti-slip ribs that provide a 360° uniform grip, embedding into the hole wall to prevent spinning.
    Do you offer customization for specific project requirements?
    Yes, we provide flexible customization for head/slot shapes, special materials, extra-long specifications, surface treatment colors, and personalized packaging.
    What materials are the sleeves and screws made of?
    The sleeves are made from industrial-grade nylon (PA6/PA66) or HDPE for aging resistance, while screws are available in zinc-plated carbon steel or 201/304 stainless steel for corrosion protection.