Galvanized/Stainless Steel Sleeve Anchor Bolts Heavy Duty Expansion Anchors for Concrete Masonry & Construction Fastening
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
• 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
• 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
• 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
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Dual-Material & Full-Size Options for Durability in All Conditions
Our sleeve anchors are available in Q235 carbon steel (grades 4.8/8.8) and AISI 304/316 stainless steel (A2-70/A4-80). Carbon steel versions with color zinc, blue-white zinc or hot-dip galvanized finishes offer excellent rust and wear resistance, while polished and passivated stainless steel provides natural corrosion resistance for coastal and humid environments. Sizes range from M6 to M24 with customizable lengths, meeting diverse strength and anti-corrosion needs for construction, equipment installation and municipal guardrails.
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Knurled Sleeve + Expansion Anchoring for Secure, Slip-Resistant Grip
Featuring a non-slip knurled sleeve expansion design, the sleeve is evenly expanded against the concrete or masonry wall by the cone head when tightening the nut, forming a high-strength mechanical lock. The knurled surface significantly increases friction with the base material, effectively preventing anchor slip under load and offering excellent vibration resistance. Manufactured to GB/T 22795 and ETAG 001 standards, they are designed for solid concrete and brick substrates, providing stable performance with sufficient safety redundancy in curtain wall and heavy equipment installation applications.
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Pre-Embedded-Free Quick Installation for High Efficiency & Versatility
Installation is simple and efficient: just drill, clean the hole, insert the anchor and tighten the nut—no pre-embedding required, greatly reducing construction time and labor costs. The design is highly adaptable to a wide range of applications, including building curtain walls, municipal guardrails, equipment installation, outdoor facilities and general mechanical assembly. With complete specifications and custom service available, they quickly meet various on-site construction needs with strong versatility.
Application Scenarios
Industrial Capabilities
• Factory Area: 8,000 square meters
• Certifications: ISO, IATF, CE, RoHS, JIS, ASTM
• Manufacturing : 70+ internationally advanced production lines
• Testing: 30+ sets of precision quality testing equipment
• Annual Output: Up to 50,000,000 tons
From Unprocessed Materials to Completed Items
Closed-loop manufacturing from raw material to final product is made possible by our factory's fully automated production lines for cold heading, precision thread rolling, controlled-atmosphere heat treatment, and eco-friendly surface finishing. Every fastener satisfies strict requirements for strength, precision, and surface quality because of inline optical sorting and a digital MES. You promise the greatest fasteners, which are dependable, effective, and environmentally friendly.
Lab for Innovation:
Do you have a project underway? Now let's proceed. We are constantly searching for fresh concepts, and talent and collaboration are what drive our development. Are you working on a project? Now let's proceed.
"Customized Implementation" to "Pain Point Diagnosis" in the Whole Joint R&D Process
We offer more than just conventional components. Our multicultural engineering staff actively participates from the start of your project. To ensure that creative concepts are swiftly turned into workable solutions that lower total lifecycle costs, we meticulously take into account the application context and tailor solutions in the lab, completely merging technology and application.
Integrated Verification System: Ensuring Innovation with "Test Data"
The drawing board is not where the creative process ends. Through our in-house technical center, we provide one-stop verification for anything from corrosion testing to prototype creation. Through extensive simulated working condition tests, we use empirical data to confirm the performance stability of tailored solutions. This significantly reduces project risks while also attaining truly reliable cost reduction and efficiency improvement.
