Bolts & Screws

Bolts and screws are two essential fastening components that help securely connect steel structures during the construction of pre-engineered buildings. They play a crucial role in maintaining stability and ensuring the durability of the entire structural frame. While bolts typically have a cylindrical shape, with external threads and work simultaneously with nuts, screws usually possess a pointed tail, uneven thread profile, and can penetrate directly into the material. Understanding and choosing the right type of bolt or screw for fastening significantly impacts the quality and safety of the construction.

Bolts are commonly used in the main joint positions of the steel frame where high tightening force and strength are required, such as connections between columns and trusses, beams and columns, load-bearing joints, or other important components. Due to their high load-bearing capacity and tight fastening capability, bolts are suitable for parts that require superior strength, minimizing the chances of loosening or displacement after a period of use. However, the installation process for bolts requires pre-drilled holes and the use of wrenches, spanners, or hex keys, often leading to longer construction times.

In contrast, at points with moderate loads or where frequent disassembly is necessary, screws are considered a more optimal choice. Thanks to their ability to be directly screwed into the material and their characteristic thread structure, the installation process for screws only requires a screwdriver or a power drill, significantly shortening installation time. However, the connection method using screws is less secure than bolts when applied to items requiring high load-bearing capacity or demands for durable connections over long periods.

Both bolts and screws rely on threaded helical rings to secure two or more components together. For main structures, bolts are always the optimal choice due to their good load-bearing capabilities, high stability, and minimal deformation over time. Meanwhile, screws are preferred for tasks requiring interior/exterior finishing, installing lightweight accessories, ensuring progress, and tidiness during construction. The harmonious combination of these two types of fastening components provides high flexibility in the design and completion of pre-engineered buildings.

To optimize the quality and sustainability of pre-engineered buildings, investors and construction units should consider choosing bolts or screws depending on the load and requirements of each component. For locations subject to high loads and requiring durability, bolts are the suitable solution due to their superior tightening ability and reliability. Conversely, screws prove convenient for auxiliary tasks, being easy to assemble and quick to install. An appropriate distribution between the two types of fastening components not only enhances safety but also helps save costs, reduces construction time, and maintains long-term stability for the project.