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 - Quick Drive-in Bolts for Wall Mounting

,

Introducing our Hammer-in Split Expansion Anchor, an essential solution for reliable anchoring in various applications. Manufactured from high-quality carbon steel with an optional 304 stainless steel variant, our anchors comply with international standards such as GB, DIN, and ANSI, ensuring top-notch quality and safety. Available in grades 4.8 and 8.8 for high strength, these anchors come in multiple sizes, including M6, M8, M10, M12, M14, and M16, with lengths typically ranging from 30mm to 120mm.

,

Our eco-friendly surface treatments, including yellow zinc and blue-white zinc plating, enhance durability and resistance to corrosion. Designed with user convenience in mind, our hammer-in quick-installation structure features pre-cut bifurcated expansion grooves, a flange with an anti-slip concentric circle texture, a one-piece molded tapered tip, and a superior color zinc anti-rust coating.

,

The Hammer-in Split Expansion Anchor is ideal for load-bearing wall and ceiling fixing, positioning pipes and brackets, framing in construction and decoration, as well as for railings and safety protection facilities. As a leading supplier from China, we ensure prompt delivery within 15-30 days after receiving advance payment.

,

Our factory offers a minimum order quantity of 10,000 pieces, which is negotiable, and samples are available upon request. We provide various packaging options, including boxed, bulk, pallet, or customized packaging solutions. OEM services are also available to meet your specific requirements. Choose quality and reliability with our Hammer-in Split Expansion Anchor today!

,
    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.

    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. The integrally formed tapered tip has no weld seams – won't crack under impact; the split expansion slots are hardened for repeated hammering without deformation.

    Factory Environment

    Factory Environment 1Factory Environment 2Factory Environment 3Factory Environment 4Factory Environment 5

    High-Quality Stainless Steel Self-Tapping Screw Display

    Frequently Asked Questions

    How does the hammer-in installation benefit bulk projects?
    The hammer-in design eliminates the need for nut tightening or specialized wrenches. This one-step process allows for significantly faster installation, reducing labor costs and fatigue, especially in overhead or tight-space applications.
    What materials and coatings are available for these anchors?
    We primarily use high-grade carbon steel or stainless steel substrates. Coatings include eco-friendly yellow or blue-white zinc plating, providing excellent corrosion resistance for both indoor and outdoor environments.
    Can the head shapes and specifications be customized?
    Yes, we offer flexible customization for head and slot shapes, extra-large or long specifications, and even personalized packaging and labeling to meet specific project requirements.
    How do you ensure the quality and traceability of the products?
    Our quality control system includes raw material source locking, full furnace number batch traceability, and third-party material certification. Every batch undergoes rigorous testing in our metallographic and mechanical joint laboratory.
    What is the function of the flange and anti-slip rings?
    The large flange head disperses the load to prevent substrate cracking, while the concentric anti-slip rings on the bottom prevent the anchor from rotating under vibration, ensuring long-term stability.
    Do you provide technical support for selection and installation?
    Absolutely. We offer on-site failure analysis, selection calculations, BOM optimization, and installation tool guidance to ensure you have the most efficient anchoring solution.