Introduction
Keyed Expansion Mechanical Anchors are engineered to provide robust and reliable fastening solutions for critical structural applications. Designed with M12 carbon steel and compliant with IBC (International Building Code) standards, these anchors are ideal for environments where fire resistance and mechanical strength are paramount. This article delves into the product’s features, technical specifications, applications, and the expertise of its manufacturer, HEBEI HEX IMP. & EXP CO., LTD..
Product Overview
The Keyed Expansion Mechanical Anchors are a specialized type of fastener designed for post-installed applications in concrete and masonry. These anchors utilize a single-tube undercut system, ensuring a secure mechanical interlock between the anchor and the substrate. The product is fire-rated, meeting stringent safety standards, and is IBC-compliant, making it suitable for use in commercial and industrial construction projects.

Figure 1: Keyed Expansion Mechanical Anchors in action.
Key Features and Advantages
Mechanical Interlock Design: The undercutting drill bit (mandatory for mechanical interlock) ensures a tight fit, enhancing load-bearing capacity. This design is critical for applications requiring high tensile strength and shear resistance.
Fire-Rated Construction: These anchors are tested and certified to meet fire safety standards, making them suitable for use in areas where fire resistance is a regulatory requirement. This is particularly important in high-rise buildings, hospitals, and public infrastructure.
IBC Compliance: The product adheres to the International Building Code, ensuring it meets the minimum requirements for structural integrity and safety in construction projects across the United States.
Ease of Installation: The installation process is straightforward, involving four key steps: drilling, undercutting, insertion, and tightening. The 35 Nm torque specification ensures optimal performance without over-tightening.
Versatile Applications: From steel-to-concrete connections to seismic bracing, these anchors are designed for heavy-duty use in both new construction and retrofitting projects.
Technical Specifications
| Parameter | Details |
|---|---|
| Material | M12 Carbon Steel |
| Fire Rating | Fire-Rated (Compliant with IBC) |
| Installation Method | Post-Installed Single-Tube Undercut |
| Torque Requirement | 35 Nm |
| Compliance Standards | IBC, AISC 360, AASHTO LRFD, PCI Design Handbook |
| Application Areas | Structural Connections, Seismic Bracing, Precast Wall Connections |
Installation Guide
The installation process for these anchors is designed to be efficient and precise. Follow these steps for optimal results:
- Drilling: Use a standard rotary hammer to drill a hole to the specified diameter and depth. Ensure the hole is vacuum-cleaned to remove debris.
- Undercutting: Employ an undercutting drill bit to expand the base cavity, creating a mechanical interlock. This step is mandatory for the anchor’s performance.
- Insertion: Insert the anchor assembly until it is flush with the substrate surface.
- Tightening: Tighten the nut to 35 Nm torque, which activates the cone expansion mechanism, securing the anchor in place.
For detailed instructions, refer to the product page.
Core Application Areas
These anchors are utilized in a variety of critical structural applications, including:
- Steel-to-Concrete Connections: Ideal for steel column base plates (AISC 360), bridge bearing assemblies (AASHTO LRFD), and precast wall connections (PCI Design Handbook).
- Seismic Bracing: Used for hospital equipment anchorage (IBC 1705.3) and pipe/tray supports in earthquake-prone zones.
- Industrial Structures: Suitable for high-load environments such as factories, warehouses, and transportation infrastructure.
For more information on aerated concrete anchors and adjustable concrete anchors, visit HEBEI HEX IMP. & EXP CO., LTD..
Company Background: HEBEI HEX IMP. & EXP CO., LTD.
HEBEI HEX IMP. & EXP CO., LTD. is a leading manufacturer and exporter of high-quality fastening solutions. With over 20 years of global export expertise, the company specializes in providing certified products that meet international standards. Their commitment to premium quality at competitive pricing ensures that clients receive industry-leading performance and value for money.
The company offers comprehensive after-sales support, including swift resolution of technical issues and customizable specification sheets for informed purchasing decisions. Their services include instant quote responses, certified export documentation, and custom packaging with pre-shipment visual verification.
For more details about their product range and services, visit HEBEI HEX IMP. & EXP CO., LTD..
Why Choose Keyed Expansion Mechanical Anchors?
Reliability: The mechanical interlock design ensures long-term durability even under extreme conditions.
Compliance: Adherence to IBC, AISC, and AASHTO standards guarantees regulatory compliance in construction projects.
Cost-Effectiveness: The competitive pricing combined with premium quality makes these anchors a cost-effective solution for both new and retrofitting projects.
Versatility: Suitable for diverse applications, from structural connections to seismic bracing, these anchors are a versatile choice for engineers and contractors.
References and Authority
The International Building Code (IBC), referenced in this article, is a comprehensive set of guidelines for building safety and structural integrity. For further information on fire-rated construction standards, consult the National Institute of Standards and Technology (NIST), which plays a pivotal role in developing measurement standards and safety protocols for construction materials.
Source: National Institute of Standards and Technology (NIST)
Conclusion
The Keyed Expansion Mechanical Anchors are a high-performance solution for structural fastening in critical applications. With M12 carbon steel, fire-rated compliance, and IBC certification, these anchors offer unmatched reliability and versatility. Manufactured by HEBEI HEX IMP. & EXP CO., LTD., a company with 20+ years of global export expertise, the product ensures premium quality and customer satisfaction.
For detailed specifications, installation guides, or product inquiries, visit HEBEI HEX IMP. & EXP CO., LTD. or contact their after-sales support team.
Product Images

Figure 2: Adjustable Concrete Anchors

Figure 3: Aerated Concrete Screws

Figure 4: Aerated Concrete Anchors
HEBEI HEX IMP. & EXP. COMPANY takes great care in selecting the herbs and herbal products. also Has own pollution-free planting base and manufacturer on the processing of traditional Chinese medicine (TCM). organic herbal extracts suppliersThese herbs and herbal products have been exported to many countries such as Japan, Korea, the USA, Africa and etc.herb extract factory|herbal extract exporterSafety, effectiveness, tradition, science, and professionalism are the values that HEX believes in and guarantees to the customers.herb extract chinaHEX selects manufacturers carefully and constantly monitor the quality control processes for our products.herbal extract companies