Eta Steel Bonding Epoxy Adhesive Adhesive Used in Bridge Reinforcement Epoxy

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Basic Information

Model NO.

Ccustom

Installation

Drilling

Material

Alloy Steel

Type

Concrete Screw Anchor

Specification

M8, M10, M12

Origin

China

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Product Description

Structure and Design

Material: Made of high-strength alloy steel with special heat treatment. Large-diameter solid steel construction withstands significant tensile and shear forces.
Thread: High-precision trapezoidal or triangular threads. Rolling process surface ensures wear resistance and smooth installation while preventing loosening.
Head Design: Available in hexagonal (wrench operation), round (anti-collision), and flat (flush mounting) styles with anti-loosening features.

Performance and Characteristics

Load Capacity: Extremely high capacity with tensile strength over 800MPa. For example, M30 bolts can handle ultimate loads over 100kN.
Corrosion Resistance: Multiple treatments available including Hot-dip galvanizing, Dacromet coatings, and Stainless Steel for harsh environments.
Seismic Resistance: Integrated energy-absorbing designs using elastic washers to disperse seismic energy and maintain anchoring stability.

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Detailed Photos

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Technical Parameters

Key Core Parameters	Details	Remarks
Raw Materials	45 steel, alloy steel, etc. Controlled carbon/alloy ratio.	Affects strength & toughness.
Hardness	HRC 30 - 40 (per specification).	Anti-deformation ability.
Tensile Strength	M8≥600MPa up to M20≥800MPa.	Reflects load capacity.
Thread Precision	Standard 6g, pitch error ±0.05mm.	Ensures tight fit.
Surface Treatment	Hot-dip Galvanized (≥80μm) or Dacromet (10-12μm).	Corrosion protection.
Heat Treatment	Quenching & Tempering (550 - 650ºC).	Optimized steel structure.

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Certifications & Installation

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Production Overview

Frequently Asked Questions

In which fields are these heavy-duty anchor bolts applied?

They are widely used in commercial high-rise buildings (steel columns), bridge bearings, chemical plant reactors, power plant equipment, highway slope protection, and railway track fixation.

What is the load-bearing capacity of these bolts?

These bolts offer extremely high capacity. For instance, an M20 bolt can exceed an ultimate tensile load of 100kN, with tensile strengths reaching 800MPa or higher.

How do you ensure corrosion resistance in harsh environments?

We utilize various surface treatments including hot-dip galvanizing for deep zinc protection, Dacromet for salt-spray resistance, or stainless steel for chemically corrosive environments.

How is seismic performance maintained?

The design incorporates elastic washers or damping materials that absorb and disperse seismic energy, maintaining anchoring force and preventing structural collapse during earthquakes.

What are the common specifications available?

Standard specifications include M8, M10, M12, M16, and M20. We can also provide customized sizes and materials based on specific engineering requirements.

What are the key precautions for installation?

Crucial steps include ensuring precise drill hole depth and diameter, thorough hole cleaning to remove dust, and using calibrated electric wrenches to apply the specified torque.