A U-bolt for construction is a fastener shaped like the letter "U," which, thanks to its unique structural design, can securely clamp various types of pipes, profiles, and components. It is widely used in critical applications such as securing building structures and installing pipelines. The product is manufactured from high-strength raw materials through precision machining, offering exceptional load-bearing capacity as well as excellent corrosion resistance—providing a solid foundation for the stability and safety of construction projects.

Product Core Parameter Table

Core Product Advantages

1. High-strength load-bearing, with a structurally stable and reliable design

Made from high-quality steel and processed through a tempering heat treatment, the bolt body meets both the national building-grade standards for tensile strength and yield strength. This ensures it can effectively withstand the combined loads of the pipeline's self-weight, medium weight, and external environmental forces—resisting deformation or fracture even under prolonged stress—and providing durable, reliable support for securing structural components.

2. Precisely tailored, easy and efficient installation

Based on common pipe and structural steel specifications used in construction projects, multiple standard bending radii and lengths are pre-set to directly match mainstream installation scenarios. The threads are manufactured using a roll-forming process, resulting in full, well-defined thread profiles with high precision—ensuring smooth engagement with nuts. This eliminates the need for complex tools during installation, significantly boosting construction efficiency while reducing labor costs.

3. Multi-layered corrosion protection, tailored for diverse environments

We offer a variety of surface treatment options, including hot-dip galvanizing and Dacromet. Among these, the hot-dip galvanized coating can achieve a thickness of up to 60 μm or more, effectively shielding the bolt body from exposure to air, moisture, and corrosive media. Whether it's for outdoor steel structure projects, damp basement pipe installations, or even mildly corrosive chemical plant environments, our products are guaranteed to deliver long-lasting performance and durability.

4. Customized flexibility to meet special needs

For non-standard-sized pipes and uniquely shaped components requiring secure fastening, we offer end-to-end customized services—from material selection and dimension design to surface treatment. Our expert technical team optimizes parameters based on engineering drawings and load requirements, ensuring that custom products precisely match the actual installation environment and effectively address challenging fastening needs in specialized conditions.

5. Quality traceability, compliant with industry standards

The entire production process strictly adheres to current national standards such as GB/T 5782-2016, and a comprehensive quality traceability system has been established—from raw material procurement and heat treatment to finished-product inspection. Each batch of products undergoes tensile strength testing, corrosion resistance testing, and dimensional accuracy checks, accompanied by a detailed quality inspection report, ensuring compliance with the acceptance criteria for construction projects.

Application Scenarios

1. Fixing Building Plumbing and Drainage Pipes

In the installation of plumbing and drainage systems for residential buildings, commercial complexes, and industrial facilities, these are used to securely fasten galvanized steel pipes, PPR pipes, and cast-iron pipes, among others. U-bolts are employed to anchor the pipes firmly to walls, floor slabs, or supports, effectively preventing vibrations or displacements caused by water flow impacts and temperature fluctuations. This ensures that pipe joints remain tight and leak-free, making it ideal for both exposed and concealed piping applications—particularly well-suited for vertically arranged pipe systems in high-rise buildings.

2. HVAC System Installation

In the installation projects of air-conditioning refrigerant pipes, heating pipelines, and ventilation ducts, we undertake the critical task of connecting and securing pipes to their supporting brackets. Addressing the frequent temperature fluctuations often associated with HVAC piping systems, our products exhibit exceptional structural stability, effectively preventing pipe displacement caused by thermal expansion and contraction. Additionally, by selecting materials such as stainless steel or employing Dacromet surface treatment, these products are perfectly suited for use in humid environments like air-conditioning machine rooms and basements, ensuring long-term, reliable system performance.

3. Steel Structure Building Component Connections

In steel structure factories, steel-frame office buildings, and steel-structure curtain walls, these components are used to securely fasten purlins, supports, cable trays, and other elements. With their high-strength load-bearing performance, they can firmly anchor components to steel columns and beams, enhancing the overall stability of the steel structure. In outdoor steel structure projects, products featuring hot-dip galvanized surface treatment effectively resist weathering and corrosion from wind and rain, significantly extending their service life.

4. Municipal Engineering and Infrastructure Development

It is widely used in scenarios such as fixing urban road lighting fixture brackets, installing municipal drainage pipes, and securing bridge ancillary facilities. Municipal engineering projects are typically conducted in outdoor, open-air environments, and the products employ a hot-dip galvanizing anti-corrosion process that effectively resists sun exposure, rain, and soil erosion. For heavy-load applications like bridges and tunnels, 8.8-grade high-strength bolts are selected to meet the demanding requirements of anchoring components under significant loads, ensuring the safe operation of critical infrastructure.

5. Corrosion Prevention Scenarios in Chemical and Industrial Buildings

In industrial settings such as chemical plants, pharmaceutical workshops, and electroplating facilities—where corrosive media are present—using U-bolts made from 304 or 316 stainless steel can effectively resist erosion caused by acidic, alkaline solutions, steam, and other corrosive substances. This prevents bolt corrosion and failure, thereby mitigating potential safety risks. At the same time, stainless steel offers excellent mechanical properties, making it ideal for securing components like industrial pipelines and equipment supports.