







The Concrete Self-Tapping Anchor Bolt is a revolutionary post-anchoring technology fastener that establishes a robust anchoring effect directly in concrete using its hardened threads. Let's delve into a comprehensive analysis from various angles:
1, Core Features
1. Innovative Self-Tapping Anchoring Mechanism
Harnessing the power of high-hardness threads, typically made from grade 10.9 or higher carbon steel, these bolts ingeniously penetrate the concrete wall to form a threaded interlocking structure. This eliminates the need for pre-drilling or chemical bonding agents. The remarkable anchoring strength is empirically validated through rigorous destructive tensile tests, where the concrete cone is more likely to fail before the anchor bolt itself.
2. Ingenious Reversible Installation Design
Facilitates easy disassembly through directional rotation, making it exceptionally suited for temporary fixtures such as scaffolding and formwork support. This clever design significantly reduces engineering renovation costs.
2, Technical parameters and adaptability
1. Principle of Specification Matching
The anchor bolt's diameter must perfectly match the drilled hole diameter (e.g., M8 anchor bolt for an 8mm hole). Diverse length options (e.g., 6 × 35, 6 × 55) accommodate varying substrate thicknesses, ensuring adequate anchoring depth to meet load-bearing requirements.
2. Material Performance Grading
• Basic Version: Crafted from Grade 8.8 or higher carbon steel, ideal for typical environmental conditions
Anti-Corrosion Enhanced Version: Featuring 410 stainless steel combined with surface anti-corrosion treatments, this version excels in withstanding harsh environments like marine climates and chemical exposure
High-Strength Version: Utilizing 12.9-grade carbon steel, this version is instrumental for anchoring heavy equipment and in seismic fortification zones
3, Application scenarios
1. Structural Reinforcement in Building
Enables the swift installation of seismic supports and suspension systems in concrete beams, slabs, columns, etc., while preserving the substrate's structural integrity.
2. Precision Equipment Installation
Perfect for securing curtain wall keels and mechanical and electrical pipeline supports, its installation efficiency shines in intricate spatial layouts thanks to its minimal clearance requirements.
3. Temporary Construction Works
Rapid detachable anchoring of scaffolding and stage structures is feasible in scenarios like event venues and exhibition setups.
4, Technical Advantages
1. Unmatched Construction Efficiency
Compared to traditional expansion anchor bolts, the installation process is over 60% faster per piece, without the wait for adhesive curing.
2. Remarkable Bearing Capacity
In C30 concrete, each anchor bolt boasts an impressive tensile capacity of 8-15kN and a shear capacity of 5-10kN, depending on specifications.
3. Superior Environmental Adaptability
With upgraded materials, it remains effective across a temperature range of -20 ºC to 80 ºC, boasting IP68 dust and water resistance.
5, Selection and Construction Points
1. Meticulous Substrate Evaluation
Test for concrete strength (preferably C25 or above), crack width (≤ 0.3mm), and steel density to prevent interference between anchor bolts and steel reinforcement.
2. Precision Tool Matching
Utilize an electric wrench with torque control, maintaining installation torque within ± 15% of the specified nominal value for optimal results.
3. Rigorous Quality Control
Post-installation, conduct sampling pull-out tests to ensure bearing capacity standards exceed 1.5 times the design value for reliable performance.