Get A Quote!
Leave Your Message
1 (1).png
12.jpg
10.jpg
11.jpg
4.jpg
3.jpg

Heavy Duty Nylon Plastic Expansion Anchors & Screws - China Factory Suppliers for Brick, Concrete & Drywall

,

Name: Nylon Plastic Expansion Anchor & Screw Kit
Material: The kit includes a durable plastic tube made from PA6/PA66 or PE, combined with high-quality screws available in carbon steel or stainless steel (201/304).
Standards: Compliant with DIN 7997 standards for reliable performance.
Grade: The carbon steel screws range from grade 4.8 to 8.8, while stainless steel options are rated A2-70.
Specifications: Expansion tubes are available in diameters of 6mm to 14mm and lengths from 30mm to 100mm, paired with matching screws sized M4 to M10.
Surface Treatment: The plastic tubes come in engineering natural, yellow, or white finishes. Screws feature environmentally friendly blue-white zinc, yellow zinc, or a natural polished stainless steel finish.
Design Features: Incorporates fish scale and spiral anti-slip outer ribs, flexible longitudinal expansion grooves, and explosion-proof, crack-resistant materials. The flange edges prevent settlement, and the kit is ready for immediate use.
Applications: Ideal for light-duty home improvements, bathroom and kitchen installations, electrical junction box fittings, lightweight building materials, and furniture or panel assembly.
Delivery Time: Fast delivery within 15-30 days upon receipt of advance payment.
Origin: China, manufactured by reputable suppliers and a trusted factory.
Brand: JGD
Minimum Order Quantity: 10,000 pieces, negotiable for bulk orders.
Samples: Available upon request.
Packaging: Offered in boxed, bulk, pallet, or customized packing options.
OEM: Customization options available to meet specific requirements.

,
    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 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
    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

    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

    Factory 1Factory 2Factory 3Factory 4Factory 5

    High-Quality Stainless Steel Self-Tapping Screw Display

    Frequently Asked Questions

    What materials are the expansion sleeves made of?
    We use industrial-grade nylon (PA6/PA66) or High-Density Polyethylene (HDPE), ensuring high impact resistance and long-term durability without becoming brittle.
    Are these screws suitable for outdoor use?
    Yes, we offer 304 stainless steel screw options which provide excellent corrosion resistance for moisture-prone or outdoor environments.
    Can I use these anchors in hollow bricks or drywall?
    Absolutely. The flexible longitudinal expansion slots and anti-slip ribs are specifically designed to provide a secure grip in brittle or hollow substrates.
    Do you provide custom packaging and labeling?
    Yes, we offer flexible customization services including personalized packaging, labeling, and even custom surface treatment colors for the sleeves.
    How do you ensure the quality of each batch?
    We implement a full traceability system via furnace numbers, along with micron-level thread rolling processes and fully automatic optical sorting for zero-defect delivery.
    Can I request a free sample for testing?
    Yes, we provide free sample making and testing services to ensure our products meet your specific application requirements.