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China Suppliers Factory Nylon Plastic Expansion Anchors with Screws - Heavy Duty Wall Plugs for Concrete & Drywall

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Product Name: Nylon Plastic Expansion Anchor & Screw Kit
, Material: Plastic tube made from PA6/PA66 or PE, with screws crafted from carbon steel or stainless steel (201/304)
, Standards: Compliant with DIN 7997
, Grade: Screws are commonly available in 4.8-8.8 grade carbon steel, while stainless steel is classified as A2-70
, Specifications: Expansion tubes range from 6mm to 14mm in diameter and lengths from 30mm to 100mm; compatible screws are M4-M10
, Surface Treatment: Plastic tubes come in engineering natural, yellow, or white; matching screws feature environmentally friendly blue-white zinc, yellow zinc, or natural polished stainless steel finishes
, Design Features: Includes fish scale and spiral anti-slip outer ribs, flexible longitudinal expansion grooves, and explosion-proof, crack-resistant durable materials. Flange anti-settlement edges enhance stability, making this a ready-to-use kit configuration.
, Applications: Perfect for light-duty home improvement projects, bathroom and kitchen hardware installations, electrical junction box setups, lightweight building materials, and furniture or panel assembly.
, Delivery Time: 15-30 days after receiving advance payment.
, Origin: China
, Brand: JGD
, Minimum Order Quantity: 10,000 pieces, negotiable
, Samples: Available for evaluation
, Packaging: Options include boxed, bulk, pallet, or customized packaging
, OEM: Available upon request.
, As a leading factory and reliable suppliers in China, we ensure high-quality products that meet your needs. Trust our Nylon Plastic Expansion Anchor & Screw Kit for your next project!

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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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    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

    Manufacturing Process
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    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
    Quality Control System
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    Quality Control System

    ✔ Raw Material Source Locking
    ✔ Batch Full Traceability
    ✔ Third Party Material Certification
    ✔ Transparent Process Parameters
    ✔ Salt Spray Test Monitoring
    ✔ International Standard Compliance
    Flexible Customization
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    Flexible Customization

    ✔ Customizable Head/Slot Shapes
    ✔ Special Material Applications
    ✔ Extra Large/Long Specifications
    ✔ Integrated Component Assembly
    ✔ Customizable Surface Colors
    ✔ Personalized Packaging & Labeling
    Technical Service
    🛠️

    Technical Service

    ✔ On-Site Failure Analysis
    ✔ Selection Calculation & BOM Optimization
    ✔ Installation Tool Selection Guidance
    ✔ Inventory Management (VMI)
    ✔ Free Sample Making & Testing
    ✔ International Standard 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.

    Flexible Expansion Slots

    💎 Flexible Longitudinal Expansion Slots

    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. This prevents localized stress concentration that could crack or burst the substrate. The nylon/PE material adapts to hole tolerances, ideal for brittle substrates like hollow blocks or aerated concrete.

    Aging-Resistant Sleeve

    🔒 Aging-Resistant Sleeve & Multi-Protection Screws

    Industrial-grade nylon (PA6/PA66) or HDPE sleeve resists impact and wear, ensuring a service life of decades without becoming brittle. Matching screws are available in carbon steel zinc-plated or 304 stainless steel, effectively resisting moisture and corrosion. The complete kit is ready for long-term mounting of hardware, electrical boxes, or bathroom fittings.

    Factory Environment & Product Display

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    High-Quality Stainless Steel Self-Tapping Screw Display

    Frequently Asked Questions

    ❓ What materials are used for the expansion sleeves?
    We use industrial-grade Nylon (PA6/PA66) or High-Density Polyethylene (HDPE). These materials are chosen for their excellent elasticity, impact resistance, and long-term anti-aging properties.
    ❓ Can these anchors be used in hollow bricks or drywall?
    Yes. The flexible longitudinal expansion slots are specifically designed to distribute stress evenly, making them ideal for brittle or hollow substrates without causing cracks.
    ❓ Are the matching screws corrosion-resistant?
    Absolutely. We offer screws in carbon steel with blue-white or yellow zinc plating, as well as high-grade 304 stainless steel options for superior moisture and corrosion resistance.
    ❓ Do you support custom head shapes or colors?
    Yes, we have flexible customization capabilities. We can produce various head/slot shapes and customize the surface treatment colors to meet your specific application or branding needs.
    ❓ How do the anti-slip ribs improve installation?
    The fish-scale and spiral ribs create a multi-directional bite into the hole wall. This prevents the anchor from spinning while the screw is being driven in, ensuring a much higher load-bearing capacity.
    ❓ Do you provide technical support for large projects?
    Yes, we offer on-site failure analysis, selection calculations, and BOM optimization to ensure you use the most efficient and secure fastening solutions for your project.