Concrete Self-Cutting Anchor Screws for Heavy-Duty Construction Work

• Customization: Available
• Material: Carbon Steel
• Type: Hexagon Head
• Model NO.: 1-1
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN
• Grade: 4.8
• Application: Machinery
• Finish: Color-Zinc Plated
• Thread Type: Full Thread
• Applicable Industries: Construction, Manufacturing, etc.
• Whether to Support Customization: Support
• Product Grade: Level a
• Transport Package: Container
• Specification: 1-30
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

The Concrete Self-Tapping Anchor Bolt stands as a revolutionary fastener in post anchoring technology, ingeniously forming a secure anchoring effect in concrete through its robust and hard threads. Here, we delve into an in-depth analysis from various perspectives:

1, Core Features

1. Self-Attack Anchoring Mechanism

Leveraging high-hardness threads, typically of grade 10.9 or superior carbon steel, this bolt masterfully cuts into the concrete hole walls, establishing a threaded interlocking structure without the necessity for pre-drilling or chemical agents. Its unparalleled anchoring strength is proven through rigorous destructive tensile testing, where often the concrete fails before the bolt itself does.

2. Reversible Installation Design

Our anchor bolt boasts a reversible installation feature that enables easy disassembly by adjusting the rotation direction, making it exceptionally ideal for temporary fixations such as scaffolding and formwork support. This feature significantly slashes renovation costs in engineering projects.

2, Technical Parameters and Adaptability

1. Principle of Specification Matching

To ensure optimal performance, the anchor bolt's diameter must correspond precisely to the hole diameter (e.g., an M8 bolt fits an 8mm hole). Various length models (like 6 × 35, 6 × 55) cater to different substrate thicknesses, ensuring anchoring depth fulfills bearing requirements.

2. Material Performance Grading

• Basic Version: Crafted from Grade 8.8 or higher carbon steel, ideal for standard environments.

Anti-Corrosion Enhanced Version: Forged with 410 stainless steel and surface-treated for corrosion resistance, perfect for marine climates and harsh chemical exposures.

High-Strength Version: Made from Grade 12.9 carbon steel, designed for securing heavy equipment and use in seismic fortification zones.

3, Application Scenarios

1. Building Structure Reinforcement

For the installation of seismic supports and suspension systems in concrete beams, slabs, and columns, our bolt enables rapid anchoring without compromising the substrate's integrity.

2. Equipment Installation

Ideal for securing curtain wall keels and mechanical and electrical pipeline supports, its compact installation capability easily adjusts to intricate spatial configurations.

3. Temporary Works

In dynamic environments like event venues and exhibitions, our bolt allows for swift and detachable anchoring of scaffolding and stage structures.

4, Technical Advantages

1. Construction Efficiency

Compared to old-school expansion anchor bolts, our product cuts installation time by over 60%, eliminating the wait for adhesive curing.

2. Bearing Capacity

In C30 concrete, a single bolt offers a tensile bearing capacity of 8-15kN and a shear capacity of 5-10kN, with specific values contingent on bolt specifications.

3. Environmental Adaptability

With upgraded materials, it operates efficiently in temperatures ranging from -20 ºC to 80 ºC, boasting IP68 dust and water resistance.

5, Selection and Construction Points

1. Substrate Evaluation

Testing for concrete strength (C25 or higher recommended), crack width (≤ 0.3mm), and steel density is essential to prevent conflicts between bolts and steel bars.

2. Tool Matching

An electric wrench with torque control is advised; installation torque should be maintained within ± 15% of the nominal value for optimal performance.

3. Quality Control

Post-installation, a sampling pull-out test verifies quality, with the bearing capacity standard set at 1.5 times the design value.