Bolting Solutions: Unleashing the Power of High-Strength Bolts


Fasteners play a crucial role in the ever-changing manufacturing industry, as they are responsible for holding various components together. India has established itself as a prominent fastener manufacturer in the world. Fastener manufacturers in India have been meeting a wide range of needs, from small-scale applications to heavy-duty industrial usage. Bolts are an important subset of fasteners that warrant our attention. Roll-fast have 25 years of World Class Manufacturing experience in nuts and bolts. We manufactures and exports SS Nuts and bolts, custom bolts, spherical washer, hub bolts, Hv bolts from our plant in India

Fasteners: The Backbone of Manufacturing:

Before we dive into the realm of high-strength bolts, it's essential to understand the significance of fasteners in industrial usage. Fasteners are like the unsung heroes that hold everything together, ensuring the seamless functioning of machinery, structures, and equipment. These indispensable components come in various types, including screws, nuts, washers, and bolts. Among several makes of fasteners, stainless steel fasteners are largely preferred for their durability.

Introducing High-Strength Bolts:

The type of fastener known as high-strength bolts is comprised of fasteners that are designed to handle significant loads while also providing increased longevity and reliability. Given that these bolts are constructed from materials that have high tensile strength, they are ideally suited for use in heavy-duty applications where standard bolts may not be adequate. Let's take a more in-depth look at the characteristics that set high-strength nuts and bolts apart from their more-traditional counterparts.

1. Material and Grade

  • High-Strength Bolts: High tensile bolts come in various grades, each offering specific mechanical properties. Some common examples include:
    • 8.8 Grade Bolts: These bolts are made from medium carbon alloy steel and are known for their excellent tensile strength and moderate hardness. They find applications in the automotive, construction, and general engineering industries.
    • 10.9 Grade Bolts: Bolts in this grade are made from medium carbon alloy steel, heat-treated to achieve high tensile strength and superior resistance to deformation. They are widely used in automotive, heavy machinery, and structural applications.
    • 12.9 Grade Bolts: Bolts in this grade are manufactured from alloy steel and undergo a heat treatment process, resulting in exceptional tensile strength, hardness, and wear resistance. They are commonly employed in critical engineering applications like aerospace and heavy machinery.
  • Standard Bolts: Standard bolts, on the other hand, are typically made from low to medium-carbon steel. They have lower tensile strength compared to high-strength bolts.

2. Load-Bearing Capacity:

  • High-Strength Bolts: These bolts are designed to withstand heavy loads and provide excellent resistance to deformation and shearing forces. They are commonly used in applications where structural integrity is critical.
  • Standard Bolts: Standard bolts are suitable for lighter loads and non-critical applications where lower tensile strength is sufficient.

3. Applications of High-Strength Bolts:

  • High-Strength Bolts: High-strength bolts find extensive use in various sectors due to their robustness and reliability. Some prominent applications include:
    • Construction Industry: High-strength bolts are essential in constructing high-rise buildings, bridges, and other structures that demand exceptional load-bearing capacity and structural integrity.
    • Renewable Energy Sector: In the ever-growing renewable energy industry, high-strength bolts are crucial for securing wind turbines and solar panels, ensuring their stability in adverse weather conditions.
    • Marine and Water Treatment: The marine industry relies on stainless steel high-strength bolts to combat corrosion in harsh seawater environments, while water treatment facilities utilize these bolts for their longevity and strength.
  • Standard Bolts: Standard bolts find widespread usage in everyday applications, such as assembling furniture, fixing lightweight structures, and in non-demanding engineering projects.

4. Preload and Clamping Force:

  • High-Strength Bolts: High-strength bolts are often used with controlled tightening methods, such as torque or tensioning, to achieve a specific preload and clamping force. This ensures the joint remains secure even under high-stress conditions.
  • Standard Bolts: Standard bolts are usually tightened using conventional methods, such as torque wrenches, without strict preload control.

5. Design and Cost:

  • High-Strength Bolts: The design of high-strength bolts requires careful consideration of the specific application's requirements, and they tend to be more expensive than standard bolts due to the high-quality materials and manufacturing processes involved.
  • Standard Bolts: Standard bolts are readily available in various sizes and are generally more cost-effective than high-strength bolts.

6. Specific Industry Standards:

  • High-Strength Bolts: These bolts often adhere to specific industry standards and codes, such as ASTM A325 and ASTM A490 for structural steel connections. Following these standards ensures uniformity and safety in construction projects.
  • Standard Bolts: Standard bolts may not require adherence to specific industry standards, as they are generally used for non-critical applications.

7. Corrosion Resistance:

  • High-Strength Bolts: High-strength bolts made from stainless steel offer excellent corrosion resistance, making them suitable for marine and coastal applications or environments prone to chemical exposure.
  • Standard Bolts: Standard bolts may be more susceptible to corrosion, especially if they are not made from corrosion-resistant materials.


Roll-Fast has established itself as a leading innovator in the field of high-quality fasteners, specifically focusing on high tensile bolts and stainless steel fasteners. With our wide array of products and a strong emphasis on customization, we are able to serve a diverse range of industries, such as the power, energy, renewable, marine, water, and sewage treatment sectors. We have a state-of-the-art manufacturing facility and in-house expertise, which allows us to maintain complete control over the quality of our products. This ensures that their clients receive fasteners that are consistently reliable.

In addition, Roll-Fast has gained a large customer base in India and over 50 other countries due to our dedication to providing exceptional customer service and delivering products just in time. The fact that they have a global reach is evidence of the trust and satisfaction they inspire in their customers. Overall, Roll-Fast has established itself as a leader among nut and bolt manufacturers in India. Our high-grade fasteners and innovative solutions have had a significant impact on the infrastructure and industries they serve.