Tension Control Bolt – F10T Bolt

DESCRIPTION:

A Tension Control Bolt, often abbreviated as TC bolt, is a type of bolt that is designed to be tightened to a specific tension or preload. These bolts are commonly used in structural and construction applications where the integrity of the joint is crucial.Tension control bolts consist of three main components:

• Bolt: The bolt itself is a threaded fastener with a specially designed head.
• Nut: The nut is also specially designed and is used in combination with the bolt.
• Shear Sleeve: The shear sleeve is a separate component placed between the bolt head and the nut.

The way tension control bolts work is as follows:

1. The shear sleeve is placed onto the threaded end of the bolt.
2. The bolt is inserted through the holes in the materials being joined.
3. The nut is threaded onto the bolt, and a specialized tool is used to grip the shear sleeve while turning the nut.
4. As the nut is tightened, the shear sleeve twists and eventually breaks off at a predetermined tension level. This breaking of the shear sleeve indicates that the bolt has reached the desired tension.

Tension control bolts are favored in construction because they provide consistent and accurate preload in structural connections. This helps ensure that the joints remain secure and can withstand the forces and loads they are subjected to over time.

Additionally, tension control bolts can be installed relatively quickly and with high precision, making them a popular choice in large-scale construction projects.

F10T bolt is a type of tension control bolt.

SPECIFICATIONS:

• Diameter (M): M12-> M36 mm
• Length (L): 30 ~ 300 mm
• ISO Grade: F10T (~10.9)
• Material: Carbon steel.
• Surface Finish: Black (plain/black); Electro-zinc-plated, Hot dip galvanized
• Standard: JISB1186

APPLICATIONS:

Tension control bolts (TCBs), also known as twist-off bolts or torque-and-snap bolts, are specialized fasteners designed for applications where precise and consistent tensioning of bolts is crucial. These bolts offer several advantages in various industries and applications, including:

1. Steel Structures:

TCBs are commonly used in the construction of steel structures such as bridges, buildings, and industrial facilities. They ensure uniform and controlled bolt tension, which is essential for structural integrity and safety.

2. Automotive and Aerospace:

TCBs are employed in the assembly of automotive and aerospace components where precise torque and tension control are required to ensure the integrity and performance of critical parts.

3. Wind Turbine Towers:

Wind turbines are subjected to dynamic loads, and TCBs are used to secure the tower sections together. The controlled tension ensures that the bolts can withstand wind and mechanical forces.

4. Transmission Towers:

In the construction of transmission towers for power lines, TCBs are used to maintain consistent tension in the bolts that hold the tower sections together, ensuring long-term stability and reliability.

5. Oil and Gas Industry:

TCBs find applications in the assembly of pipelines, offshore platforms, and pressure vessels in the oil and gas sector. These applications require precise tension control to prevent leaks and ensure safety.

6. Railway Tracks:

In the construction of railway tracks, TCBs are used to secure rails to sleepers or ties. Uniform tensioning is critical to maintaining the stability and safety of the track.

7. Mining Equipment:

TCBs are utilized in the assembly of heavy mining equipment, ensuring that components remain securely fastened under extreme operating conditions.

8. Wind Load and Seismic Applications:

In regions prone to high winds and seismic activity, TCBs are used to enhance the resistance of structures to these forces by maintaining consistent bolt tension.

9. High-Vibration Environments:

TCBs are ideal for applications exposed to high levels of vibration, such as heavy machinery and industrial equipment, as they resist loosening over time.

10. Water Treatment Plants:

TCBs are employed in the construction of water treatment facilities to ensure the stability of pipes, pumps, and other infrastructure components that are critical for water supply and purification.

In all of these applications, tension control bolts offer the advantage of precise and reliable tensioning, reducing the risk of structural failure, leaks, and maintenance issues. Their use can lead to enhanced safety, improved structural performance, and reduced maintenance costs in a wide range of industries.

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CONTACT INFO:

NAM AN INDUSTRIAL MATERIAL COMPANY LIMITED

Warehouse/Office address: No. 68, Van Canh Service Land, Hoai Duc District, Ha Noi City, Viet Nam.

Factory address: National Highway 5, Quy Duong, Tan Truong Commune, Cam Giang District, Hai Duong, Vietnam.

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