8.8 Grade Hexagonal Bolt Manufacturer
Fasteners India is a trusted 8.8 Grade Hexagonal Bolts manufacturer based in Kolkata, catering to clients across West Bengal, Odisha, Assam, Chhattisgarh, Jharkhand, Bihar, Maharashtra, Telangana, Delhi, Meghalaya, Tamil Nadu, Uttar Pradesh & Karnataka. Our 8.8 grade hex bolts are engineered for high-load applications where strength, durability, and precision are critical.
About Our Manufacturing Excellence
Fasteners India is a leading fastening solutions company with advanced production facilities and strict quality control systems. We manufacture high-tensile hex bolts that meet national and international standards, ensuring reliability in every application.
What Makes 8.8 Grade Hex Bolts Stand Out?
8.8 grade hexagonal bolts are high-tensile fasteners made from carbon steel and heat-treated to deliver superior mechanical strength. They are widely used in structural, industrial, and heavy-duty engineering projects.
Key Advantages:
- High tensile and yield strength
- Excellent resistance to vibration and load stress
- Uniform threading and precise dimensions
- Available with corrosion-resistant finishes
- Suitable for heavy-duty and dynamic applications
Our Product Range
Fasteners India manufactures and supplies:
- Fully threaded 8.8 grade hex bolts
- Partially threaded 8.8 grade hex bolts
- Structural hex bolts
- Custom-length and special-specification bolts
Manufacturing & Quality Assurance Process
- Selection of high-grade steel rods
- Hot or cold forging of bolt heads
- Thread rolling for strength and accuracy
- Heat treatment for grade 8.8 performance
- Surface finishing (zinc plated, black, HDG, etc.)
- Dimensional inspection and mechanical testing
Technical Specifications Chart
Size (mm) | Thread Type | Length Range (mm) | Mechanical Grade | Finish |
M8 | Metric | 20 – 150 | 8.8 | Black, Zinc plated |
M10 | Metric | 25 – 200 | 8.8 | Black, Zinc plated |
M12 | Metric | 30 – 250 | 8.8 | Black, Zinc plated |
M16 | Metric | 40 – 300 | 8.8 | Black, Zinc plated |
M20 | Metric | 50 – 350 | 8.8 | Black, Zinc plated |
(Custom sizes and finishes available on request.)
Where 8.8 Grade Hex Bolts Are Used
- Steel structures and fabrication works
- Industrial machinery assembly
- Power plants and refineries
- Bridge construction and infrastructure projects
- Automotive and heavy equipment manufacturing
Why Fasteners India Is the Right Choice
- In-house manufacturing facility
- Strict quality control and testing
- Competitive pricing
- Bulk supply capability
- Timely delivery across multiple regions
- Custom specifications available
Service Coverage
Fasteners India supplies 8.8 grade hexagonal bolts across:
West Bengal, Odisha, Assam, Chhattisgarh, Jharkhand, Bihar, Maharashtra, Telangana, Delhi, Meghalaya, Tamil Nadu, Uttar Pradesh & Karnataka.
Connect with Fasteners India Today
For reliable 8.8 Grade Hexagonal Bolts manufacturing in Kolkata, contact Fasteners India today for pricing, technical datasheets, and project support.