| Thread d |
p |
b (ref) |
Ds |
Dw |
k |
r |
F1 |
F2 |
| c |
d |
e |
Min. |
Max. |
Min. |
Nom. |
Min. |
Max. |
Nom. |
Min. |
Max. |
| M12 |
1.75 |
30 |
- |
- |
11.3 |
12.7 |
20 |
8 |
7.2 |
8.8 |
18 |
11 |
16 |
| M16 |
2 |
38 |
44 |
- |
15.3 |
16.7 |
26 |
10 |
9.2 |
10.8 |
20 |
13 |
18 |
| M20 |
2.5 |
46 |
52 |
65 |
19.16 |
20.84 |
33 |
13 |
12.1 |
13.9 |
22 |
15 |
20 |
| M22 |
2.5 |
50 |
56 |
69 |
21.16 |
22.84 |
37 |
14 |
13.1 |
14.9 |
23 |
15.5 |
21 |
| M24 |
3 |
54 |
60 |
73 |
23.16 |
24.84 |
41 |
15 |
14.1 |
15.9 |
25 |
16 |
21.5 |
| M27 |
3 |
60 |
66 |
79 |
26.16 |
27.84 |
46 |
17 |
16.1 |
17.9 |
27 |
19 |
24 |
| M30 |
3.5 |
78 |
72
|
85 |
29.16 |
30.84 |
50 |
19 |
18.0 |
20.0 |
30 |
21 |
26 |
| M36 |
4 |
78 |
84
|
97 |
35.00 |
37.00 |
61 |
23 |
22.0 |
24.0 |
36 |
25 |
31 |
What Are Tension Control Bolts?
Tension Control Bolts (TCBs) are designed to be used in high-strength applications where precise bolt tension is critical. These fasteners are most commonly used in structural steel and construction projects, where the tension of each bolt must be controlled to ensure a secure connection. The unique feature of Tension Control Bolts is their ability to automatically control the tension during installation, ensuring that the correct tension is achieved. This is achieved through a friction mechanism that is activated when the bolt head shears off, signaling the correct amount of torque has been reached.
Why Choose Tension Control Bolts?
Tension Control Bolts offer several advantages over conventional bolts, including:-
- Enhanced Safety: Tension control bolting systems provide better load distribution, reducing the risk of bolt loosening due to vibrations or external stresses.
- Increased Efficiency: The installation of Tension Control Bolts is quicker and more reliable, as the shearing mechanism ensures the correct tension every time, minimizing human error.
- Long-Term Reliability: These bolts are designed to maintain their tension over time, preventing the need for frequent adjustments and maintenance.
- Easy Installation: The self-tightening feature of Tension Control Bolts makes them easy to install, requiring less labor and reducing installation time significantly.
Applications of Tension Control Bolts
Tension Control Bolts are predominantly used in the construction and steel erection industries. Some key applications include:-
- Building Construction: Used to secure structural components like beams, girders, and columns in large-scale buildings.
- Bridge Construction: Ensures structural integrity by tightly securing various parts of the bridge framework.
- Industrial Plants: Commonly used to connect heavy machinery and equipment to the supporting structure.
- Telecommunication Towers: Secure assembly of the structural frame, preventing any loosening or failure in the critical components.
Tension Control Bolt Features and Specifications
Tension Control Bolts are built to meet specific performance standards that guarantee their suitability for demanding applications. Some common features include:-
- High Tensile Strength: Ensures bolts can withstand high levels of force without failure.
- Corrosion Resistance: Coatings such as zinc metal coating or galvanized coating prevent rust and corrosion, ensuring long-term durability in outdoor and industrial environments.
- Precision Engineering: Manufactured to exact specifications, ensuring uniform tension control during installation.
- Compliance with Standards: Tension Control Bolts comply with international standards such as ASTM A325, ASTM A490, and ISO 9001, ensuring quality and reliability in all applications.
Tension Control Bolt Table and Drawing
To assist with the installation and selection of Tension Control Bolts, we provide detailed Tension Control Bolt tables and drawings on our website. These resources include important size charts, thread specifications, bolt lengths, and shear values to ensure the correct choice of bolt for your project. Whether you need a specific Tension Control Bolt size chart or are looking for detailed drawings to guide your installation process, Pankaj International offers comprehensive resources for your reference.
Benefits of Tension Control Bolt System
The Tension Control Bolt system is designed to ensure that each bolt reaches its desired tension during installation, resulting in stronger, safer connections. The automatic tensioning process eliminates guesswork and reduces the risk of over-tightening or under-tightening, both of which can weaken structural integrity. These bolts also ensure that the connections remain secure over time, making them ideal for high-traffic or high-load environments where safety is a top priority.
Pankaj International - Your Trusted Tension Control Bolt Supplier
As one of the best fastener manufacturers in India, Pankaj International is committed to providing high-quality Tension Control Bolts for both local and global markets. We pride ourselves on producing high tensile fasteners that meet the rigorous standards required for construction, infrastructure, and industrial applications. Our Tension Control Bolts, combined with detailed size charts, tables, and drawings, ensure that you receive the best quality product along with the guidance needed for optimal installation.