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Tension control bolts are specialized fasteners designed to ensure a precise clamping force, crucial for structural integrity in various applications. Selecting the right type and size is vital for safety and long-term performance, preventing premature failure and ensuring your project meets all load-bearing requirements.
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MULTIPLE USE: It can be used on multiple platforms and facets. Creating a concrete list of its uses would be near to impossible as it always finds its way to be a part of a newly founded machine, apparatus, furniture or equipment.
All items are brand new and well packaged. Your order will be carefully packaged and shipped quickly. We value our customers - and their opinions!
SOLID STAINLESS STEEL: Made of high quality stainless Steel. Our products feature strength and offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. Known to be composed of steel alloy to prevent...
18-8 Stainless Steel Thumb Screws – highly resistant to corrosion and rust, making them ideal for both indoor and outdoor use, even in harsh environments or areas exposed to moisture. Durable and long-lasting for secure fastening.
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Clamping Knob Grip Dimensions. Width: 1 1/2" Thickness: 7/16" Has an ergonomic sturdy grip for fast adjustment without a wrench
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Optimize Saw Performance: The hacksaw blade pins and hacksaw parts bolt ensure your saw stays at maximum operating capacity by maintaining perfect blade tension with every use, for efficient, precise cuts
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ENVIRONMENT FRIENDLY: not only is it made from high-quality elements this kit also promotes environmental protection and is guaranteed to be mercury-free and toxic-free generally making it poison-free.
MULTIPLE USE: It can be used on multiple platforms and facets. Creating a concrete list of its uses would be near to impossible as it always finds its way to be a part of a newly founded machine, apparatus, furniture or equipment.
All items are brand new and well packaged. Your order will be carefully packaged and shipped quickly. We value our customers - and their opinions!
SOLID STAINLESS STEEL: Made of high quality stainless Steel. Our products feature strength and offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. Known to be composed of steel alloy to prevent...
Please see the specifications in the table below for full details. If you have any questions or doubts, or if your requirements include specific dimensions, please contact us prior to placing your order.
PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specifications to which they...
ASMC Industrial Brand fasteners are guaranteed to be of the highest quality and are lot controlled, providing traceability to the manufacturer and raw material.
Please see the specifications in the table below for full details. If you have any questions or doubts, or if your requirements include specific dimensions, please contact us prior to placing your order.
PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specifications to which they...
ASMC Industrial Brand fasteners are guaranteed to be of the highest quality and are lot controlled, providing traceability to the manufacturer and raw material.
Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Tension Control Bolts
Understanding Tension Control Bolts
Tension control bolts, often referred to as TC bolts, are a type of structural bolt that utilizes a spline to achieve a predetermined tension when installed. They are commonly used in steel construction for bridges, buildings, and other critical infrastructure where consistent and reliable clamping force is paramount. The unique design simplifies installation and ensures accuracy without the need for specialized torque wrenches.
Key Features to Consider
Material and Coating: Bolts are typically made from high-strength steel alloys. Look for appropriate coatings like zinc or hot-dip galvanization for corrosion resistance, especially in outdoor or harsh environments.
Size and Thread Count: Bolt diameter, length, and thread pitch must match the requirements of your specific application and the materials being joined. Always consult engineering specifications or project plans for accurate dimensions.
Washer Requirements: Tension control bolts often require specific washers, typically hardened steel washers, to ensure even load distribution and proper function. Ensure you select compatible washers.
Spline Design: While most function similarly, minor variations in spline design exist. Ensure the tool you use is compatible with the spline type of the bolt.
Installation and Tools
Installation involves a specialized installation tool that grips the spline. When the correct tension is reached, the spline shears off at a pre-determined break point, indicating the bolt is properly tightened. This mechanism ensures consistent tension across multiple bolts, simplifying quality control on job sites. Ensure the tool is calibrated and maintained for optimal performance.
Applications
These bolts are indispensable in heavy-duty construction, particularly for connecting steel members. Their reliability makes them suitable for seismic applications, high-rise buildings, and any structural project where safety and durability are non-negotiable. They are also used in industrial equipment assembly and other scenarios requiring high-strength, controlled fastening.
Frequently Asked Questions
What is the main advantage of using tension control bolts?
The primary advantage is their ability to achieve a consistent and predetermined clamping force without the need for specialized torque-measuring tools. The spline shearing mechanism ensures accurate tensioning for every bolt.
Are tension control bolts suitable for all types of steel construction?
Yes, they are widely used in various steel construction projects, including bridges, buildings, and seismic structures. Their reliability and consistent tension make them ideal for critical load-bearing applications.
What kind of tool is needed to install tension control bolts?
A specialized installation tool is required. This tool grips the spline of the bolt and applies tension until the spline shears off at its designated break point.
How do I determine the correct size of tension control bolt for my project?
The correct size depends on the specific engineering requirements of your project. You should consult structural plans, engineering specifications, or a qualified engineer to determine the appropriate diameter, length, and thread specifications.
Can tension control bolts be reused?
Generally, tension control bolts are designed for single use. Once the spline has sheared off during installation, the bolt is permanently set, and it is not recommended to reuse it.
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