Get A Quote!
Leave Your Message
1.png
12.jpg
13.jpg
10.jpg
2.jpg
6.jpg

China Suppliers Factory Hammer-in Split Expansion Anchors for Concrete Wall Mounting - Quick Drive-in Bolts

,

Name: Hammer-in Split Expansion Anchor / Drive Anchor
Material: High-quality carbon steel or optional 304 stainless steel
Standards: GB / DIN / ANSI
Grade: 4.8 / 8.8 high strength
Sizes: M6, M8, M10, M12, M14, M16 (available lengths typically range from 30mm to 120mm)
Surface Treatment: Environmentally friendly yellow zinc or blue-white zinc plating
Design Features: Innovative hammer-in quick-installation structure, pre-cut bifurcated expansion grooves, flange with an anti-slip concentric circle texture, one-piece molded tapered tip, and high-quality color zinc anti-rust coating
Applications: Ideal for load-bearing wall and ceiling fixing, pipe and bracket positioning, building and decoration framing, railings, and safety protection facilities
Delivery Time: 15-30 days after receiving advance payment
Origin: China
Brand: JGD
Minimum Order Quantity: 10,000 pieces, negotiable based on your requirements
Samples: Available for testing and quality assurance
Packaging: Offered in Boxed/Bulk/Pallet or customized packaging
OEM: Available to meet specific needs
Suppliers: As a leading factory in China, we ensure high-quality production and reliable supply.

,
    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
    Hammer-in Quick Installation

    Hammer-in Quick Installation – One Step

    Hammer-in design – after inserting into the pre-drilled hole, simply strike the head with a hammer. The integrally formed tapered tip drives the split expansion slots outward, anchoring tightly against the hole wall. No wrench or special tools needed – one person, one hand. Ideal for overhead work, tight spaces, or bulk installations.

    Flange + Concentric Anti-Slip Rings

    Flange + Concentric Anti-Slip Rings

    The larger flange head provides greater bearing area, effectively dispersing loads and preventing hole-edge crushing or cracking. The bottom face features anti-slip concentric rings that bite into the substrate surface after driving, preventing rotation under vibration or lateral forces – ensuring stable anchoring orientation.

    Quality Zinc Plating

    Quality Zinc Plating – Long-Lasting

    Carbon steel substrate with eco-friendly yellow or blue-white zinc plating – dense and uniform coating resists moisture, dust, and mild corrosion, suitable for both indoor and outdoor use. Fatigue-tested, this anchor withstands long-term static and dynamic loads without failure.

    Factory Environment

    Factory 01Factory 02Factory 03Factory 04Factory 05

    High-Quality Stainless Steel Self-Tapping Screw Display

    Frequently Asked Questions

    How does the hammer-in installation work?
    Simply insert the anchor into a pre-drilled hole and strike the head with a hammer. The tapered tip expands the slots to anchor securely against the wall without needing nuts or wrenches.
    What materials are used for these anchors?
    We use high-quality carbon steel or 304 stainless steel, depending on the application requirements, ensuring maximum strength and durability.
    Is the surface treatment corrosion-resistant?
    Yes, our anchors feature eco-friendly zinc plating (yellow or blue-white) which provides excellent resistance to moisture, dust, and mild corrosive environments.
    Can I request custom head shapes or sizes?
    Absolutely. We offer flexible customization for head/slot shapes, extra-long specifications, and personalized packaging to meet specific project needs.
    Do you provide technical support for installation?
    Yes, we offer technical services including on-site failure analysis, installation tool selection guidance, and free sample testing.
    Are your products fully traceable?
    Yes, our quality control system ensures full traceability of furnace number batches and provides third-party material certifications for transparency.