Our color zinc plated high‑strength hammer drive pin expansion through anchor bolt is made of high‑strength carbon steel (Grade 5.8/8.8) or 304 stainless steel. Centre pin hammer‑drive expansion mechanism – pass the anchor through the workpiece pre‑drilled hole into the substrate, then hammer the centre pin to expand the bottom segments against the hole base, creating a through‑anchorage. The threaded shank with anti‑slip flange nut allows adjustable clamping; the flange’s anti‑slip pattern prevents loosening. The bottom cross anti‑slip drive slot facilitates emergency removal. Sizes M8‑M20, lengths 60‑200mm custom. Suitable for heavy electromechanical equipment, steel curtain walls, infrastructure, and industrial racking. Installation: pass through workpiece → insert into substrate hole → hammer the pin → tighten the flange nut – through‑fixing in one step.
Color Zinc Plated High-Strength Hammer Drive Pin Expansion Anchor Bolts Through Bolt for Concrete Masonry Fixation
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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Center Pin Hammer Expansion – Through Anchoring in One Step
Insert the anchor through the workpiece into the base material hole, strike the center pin – the bottom expansion petals open at the hole bottom, creating a through mechanical lock. No nut tightening or waiting – hammering completes anchoring instantly. The threaded through-section protrudes outside, allowing adjustable clamping force with the flange nut – ideal for steel structures and curtain wall frames requiring through-profile fixing.
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Flange Nut with Anti-Slip Self-Locking – Vibration-Resistant & Reliable
The matching flange nut features dense anti-slip ribs on the bottom face, biting into the workpiece surface during tightening to resist vibration and impact loosening. The threaded through-section offers ample adjustment margin – even with hole depth deviations, preload can be precisely adjusted via the nut. The bottom cross anti-slip drive slot supports emergency removal – easy maintenance, stays secure in heavy machinery and industrial racking.
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High-Strength Carbon Steel + Bright Zinc Plating – Heavy-Duty & Weather-Resistant
Made of 5.8/8.8 grade high-quality carbon steel with high tensile strength, easily handling heavy equipment loads. Bright eco-friendly yellow/blue-white zinc plating provides dense, uniform corrosion protection against moisture, rain, and mild corrosive environments – suitable for outdoor awnings, infrastructure, and industrial plants. Integrally formed pins and expansion petals are hardened – withstand repeated hammering without cracking, and long-term cyclic loads without fatigue – extremely long replacement cycles, excellent cost-performance.
Factory Environment
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 Raw Materials to Finished Products
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 guarantee top-notch fasteners that are dependable, efficient, and eco-friendly.
Innovation Lab:
Expertise and collaboration drive us forward, constantly pursuing innovative solutions. Have a project? Let's get started.
"Customized Implementation" to "Pain Point Diagnosis" in the Whole Joint R&D Process
We offer more than just common parts. Our multicultural engineering staff actively participates in your project from the start. In order to ensure that creative concepts are swiftly turned into workable solutions that lower overall lifetime costs, we thoroughly examine the application context and tailor solutions in the lab, seamlessly integrating technology and application.
Integrated Verification System: Ensuring Innovation with "Test Data"
The drawing board is not the conclusion of the creative process. We offer one-stop verification for everything from corrosion testing to prototype development through our in-house technical center. We employ empirical data to verify the performance stability of customized solutions through comprehensive simulated working condition tests. In addition to achieving genuinely dependable cost reduction and efficiency improvement, this greatly lowers project risks.
