Hex Flange Concrete Anchor Bolt

The built-in expansion mechanism delivers powerful mechanical occlusion inside concrete holes, providing ultra-high tensile resistance and shear resistance. The integrated flange head realizes automatic positioning, flat fitting and uniform pressure dispersion, avoiding sinking and deformation during locking. Widely adopted for foundation installation, guardrail fixing, equipment base anchoring and outdoor steel structure connection, it is a reliable heavy-load anchoring solution for civil engineering and municipal projects.

Thickened Forging Processing & Standard Full Thread Machining Technology

This concrete flange anchor bolt is manufactured via integral die forging and precision thread rolling technology, with thickened rod body and enlarged flange structure for enhanced structural rigidity. The standard external hex head matches various torque tools perfectly, supporting high-strength tightening without slipping or head damage. The full-section standard machine thread ensures smooth meshing and uniform pre-tightening force. The optimized open expansion slot expands evenly under axial tension, closely clinging to the concrete hole wall to form a firm mechanical lock without empty expansion or partial slipping. After overall heat treatment, the bolt achieves balanced hardness and toughness to resist heavy load and shear force. Multiple surface treatments including electro galvanizing, color zinc plating and hot-dip galvanizing provide superior rust and corrosion resistance, adapting to outdoor open-air, humid and coastal corrosive environments.

Product Parameter

Flange Positioning Advantages & Engineering Anchoring Stability

1. Integrated flange positioning for flat and stable installation. The enlarged hex flange head replaces ordinary gaskets, providing full-plane compression and accurate positioning. It effectively prevents bolt sinking, tilting and loose contact during high-load locking, ensuring flat and neat installation surface for engineering facilities.

2. High-strength mechanical expansion locking. The precise open expansion slot expands evenly under axial pulling force, forming tight occlusion with concrete hole walls. It combines mechanical interlocking and friction fixing to deliver ultra-high tensile and shear force, far exceeding ordinary expansion bolts in bearing capacity and structural stability.

3. Enhanced overall structural rigidity. Adopting thickened rod body and die-forged integrated molding, the bolt features no welding gaps and uniform internal stress. It resists long-term mechanical vibration, wind load and ground micro-displacement, maintaining permanent anchoring effect for outdoor and engineering projects.

4. Superior environmental adaptability. With multiple heavy-duty anti-corrosion treatments such as hot-dip galvanizing, the anchor bolt is resistant to oxidation, rain erosion and salt spray corrosion. It stably serves in outdoor open-air, coastal and humid engineering environments with long service life.

5. Simple construction and wide engineering compatibility. The single-piece integrated structure eliminates complicated assembly steps, enabling fast drilling and one-time locking installation. It is suitable for large-scale municipal engineering, infrastructure construction and equipment fixing projects with high cost performance and stable batch quality.

FAQ

Q1: What is the advantage of hex flange concrete anchor bolts over ordinary expansion bolts? 

A1: It adopts integrated flange positioning design with larger compression area and no need for extra gaskets. It features higher locking stability, stronger bearing capacity and not easy to sink or loosen, which is more suitable for formal engineering heavy-load anchoring scenarios.

Q2: What kind of base is this anchor bolt suitable for? 

A2: It is specially designed for solid hard concrete, cement foundations and stone walls. It provides stable anchoring force for solid base structures and is the preferred fastener for civil engineering and municipal infrastructure.

Q3: Can it be used for long-term outdoor projects? 

A3: Yes. Equipped with hot-dip galvanizing and enhanced anti-corrosion processes, it has excellent weather resistance and corrosion resistance, capable of long-term stable operation in outdoor and coastal harsh environments.

Q4: Is the installation process complicated? 

A4: The overall structure is simple and integrated. Just drill holes, clean up dust and tighten the hex head to complete expansion and locking. The construction process is efficient and suitable for batch engineering operations.

Q5: Support non-standard engineering customization? 

A5: We support customized bolt length, expansion diameter, flange thickness and special surface treatment, and can provide engineering qualification documents to meet project acceptance standards.