Welcome to our E S HAJI & CO!
Call us 9:00am - 6:00pm
(+91) 994 009 7572 / 89563 56925
Monday to Friday
9:00am - 6:00pm
E-mail us
info@eshaji.in
Foundation Bolts
Built for
Heavy Industry
30+ years of foundation bolt manufacturing in Chennai — quality certified, delivered on time. M12–M100 in every type, grade and finish, for both small and bulk orders, PAN India.
Experience
Trusted Foundation Bolt Manufacturer & Supplier in Chennai
E S Haji & Co has been a trusted foundation bolt manufacturer in Chennai since 1994, serving construction, infrastructure and heavy engineering industries with fastening solutions built for strength, precision and long-term durability.
Our foundation bolts are used across critical applications — anchoring structural columns, securing industrial machinery, equipment bases and steel frameworks where load-bearing reliability cannot be compromised. Every bolt is manufactured with strict dimensional accuracy to perform dependably under heavy loads and demanding site conditions.
We produce our complete range in-house using premium-grade materials, from mild steel to high-tensile alloy grades, backed by advanced processes and rigorous quality checks. Whether you need standard sizes or custom-engineered bolts from M12 to M100, we deliver on time for both small and bulk orders, PAN India.
Diameters
M12 to M100
Grades
4.6 · 5.6 · 8.8 · 10.9 · 12.9
Standards
ASTM F1554 / IS 5624 / DIN 529 / ISO 898-1
Materials
MS, CS, SS, EN8D, EN19, Galv, Alloy
Documentation
Mill Test Certificates (MTCs) with every batch
Benefits of Our Foundation Bolts
Engineered for load-bearing reliability across buildings, machinery and heavy structural systems.
Structural Stability
Reliable anchoring for buildings, machinery and heavy structural systems.
Corrosion Resistance
Galvanised and coated options resist rust, moisture and harsh weather.
High Load Capacity
Engineered for heavy tensile, shear and uplift loads.
Versatile Range
M12 to M100 in multiple shapes, grades and material options.
Long Service Life
Built for decades of safe, maintenance-free performance.
Custom to Drawing
Non-standard shapes, sizes and grade combinations to specification.
Mill Test Certificates
MTCs supplied with every batch for full traceability.
Reliable PAN India Delivery
On-time supply for both small and bulk orders nationwide.
Types of Foundation Bolts We Manufacture
L-Type Foundation Bolts
J-Type Foundation Bolts
U-Type Foundation Bolts
T-Type Foundation Bolts
Plate-Type Foundation Bolts
Straight & Rag Bolts
Foundation Bolt Specifications at a Glance
| Specification | Range / Options |
|---|---|
| Diameters | M12, M16, M20, M24, M30, M36, M42, M48, M56, M64, M72, M80, M90, M100 |
| Lengths | As per drawing (single lengths up to 12 metres on request) |
| Bolt Types | L-type, J-type, U-type, T-type, Plate-type, Straight, Rag, Eye, Hooked, Light Pole, Pipe Stiffener |
| Materials | MS, Carbon Steel, SS304, SS316, EN8D, EN19, Galvanised Steel, High-Tensile Alloy Steel |
| Bolt Grades | 4.6, 5.6, 8.8, 10.9, 12.9 |
| Standards | ASTM F1554 (Gr 36/55/105), IS 5624, DIN 529, ISO 898-1 |
| Surface Finishes | Plain, Hot-Dip Galvanised, Zinc Plated, Black Oxide, Painted, SS Mill |
| Documentation | Mill Test Certificates (MTCs), Inspection Reports |
| Delivery | PAN India + Export |
Materials We Use for Foundation Bolts
| Material | Description |
|---|---|
| Mild Steel (MS) | Cost-efficient and versatile for general-purpose structural use |
| Carbon Steel (Gr 8.8) | Strong and dependable for industrial anchoring applications |
| Stainless Steel SS304/SS316 | Corrosion-resistant — ideal for coastal, marine and outdoor environments |
| EN8D | Medium-carbon steel for higher-strength structural requirements |
| EN19 | Alloy steel engineered for high-tensile and high-temperature applications |
| Galvanised Steel | Rust-resistant coating for heavy-duty outdoor and infrastructure projects |
| High-Tensile Alloy Steel | Maximum load-bearing capacity for critical, high-stress installations |
Standards & Grades
| Standard | Detail |
|---|---|
| ASTM F1554 | US standard for structural anchor bolts (Grade 36, 55, 105) |
| IS 5624 | Indian Standard for foundation and anchor bolts |
| DIN 529 | German Standard for masonry and foundation bolts |
| ISO 898-1 | Global tensile strength standard |
| Bolt Grades | 4.6, 5.6, 8.8, 10.9, 12.9 — selected to your load and application |
Surface Finishes Available
How We Manufacture Foundation Bolts
Engineering Review
We review your structural drawings, design loads and specifications before production begins.
Raw Material Sourcing
Certified mill steel is selected and verified with incoming inspection and testing.
Forging, CNC & Threading
Precision bending, forging, CNC machining and thread-rolling deliver dimensional accuracy.
QC & Dispatch
Dimensional inspection, finishing and MTC documentation before secure PAN India dispatch.
Applications of Foundation Bolts
Used across construction, heavy industry, energy and infrastructure projects nationwide.
Construction & Infrastructure
Bridges, highways, flyovers and high-rise buildings.
Heavy Machinery
Anchoring industrial equipment and production systems.
Automotive Industry
Assembly line structures and installation bases.
Oil & Gas
Pipelines, drilling rigs and offshore platform structures.
Renewable Energy
Wind turbine bases and solar mounting structures.
Power Plants
Transformers, substations and transmission towers.
Pre-Engineered Buildings
Column base-plate connections.
Telecommunications
Mobile tower bases and monopole foundations.
Railways & Metro
Track-side structures, footbridges and station supports.
What Our Clients Say
We required custom foundation bolts for a PEB project in Sriperumbudur. They manufactured to our exact drawing with the right grade and finish — MTCs in order and delivery on schedule.
Vikram Iyer Site Engineer, Shapoorji Pallonji, ChennaiOur plant expansion needed Grade 12.9 foundation bolts in large quantities with tight lead times. E S Haji & Co delivered consistently across two cycles — correct dimensions, proper certifications, no rejections.
Dinesh Patel Purchase Manager, Siemens India, AhmedabadWe've worked with E S Haji & Co for foundation bolt supply across multiple government infrastructure sites in Tamil Nadu. Their galvanised bolts perform well outdoors — no delays, no excuses.
Murugan Krishnamurthy Civil Contractor, Tamil NaduLocations We Serve
From our facility in Ambattur, Chennai — we supply to industrial hubs across India and ship internationally.
Chennai & Tamil Nadu
Ambattur · Guindy · Perungudi · Tambaram · Sriperumbudur
Manali · Madhavaram · Oragadam · Maraimalai Nagar · Padi · Avadi
Coimbatore · Trichy · Madurai · Salem · Hosur · Erode
PAN India
Mumbai · Bangalore · Hyderabad · Pune · Delhi NCR
Kolkata · Ahmedabad · Visakhapatnam · Vadodara · Surat
and all major industrial cities
International Export
UAE · Saudi Arabia · Qatar · Oman · Bahrain
Sri Lanka · Nepal · Bangladesh · Singapore
Malaysia · Africa · and more
Frequently Asked Questions
Common questions about our foundation bolt manufacturing and supply in Chennai and across India.
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What are foundation bolts and what are they used for?
Foundation bolts are heavy-duty fasteners embedded into concrete foundations to anchor structural columns, machinery, equipment bases and steel frameworks. They provide the critical connection between a structure and its foundation, ensuring stability under load.
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What is the difference between foundation bolts and anchor bolts?
The terms are often used interchangeably. Foundation bolts are typically cast into concrete during construction, while anchor bolts can refer to both cast-in-place and post-installed fasteners. We manufacture both based on project requirements.
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Which materials are best for foundation bolts in coastal or outdoor environments?
For coastal Chennai, marine and outdoor applications, Stainless Steel SS316 or hot-dip galvanised steel are recommended due to their superior resistance to corrosion, moisture and salt exposure.
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What sizes do you manufacture foundation bolts in?
We manufacture foundation bolts from M12 to M100, covering standard and custom sizes. Brace rods are available in single lengths up to 12 metres on request.
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Which standards do your foundation bolts comply with?
Our foundation bolts are manufactured in compliance with ASTM F1554, IS 5624, DIN 529 and ISO 898-1 for tensile strength.
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Do you provide Material Test Certificates (MTCs) with your bolts?
Yes. Every batch comes with Mill Test Certificates confirming material grade, chemical composition and mechanical properties.
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Can you manufacture foundation bolts based on custom engineering drawings?
Yes. We offer customised manufacturing based on client-supplied drawings and specifications, including non-standard shapes, sizes and grade combinations.
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What bolt grades are available and how do I choose the right one?
We supply grades 4.6, 5.6, 8.8, 10.9 and 12.9. The right grade depends on your tensile, shear and uplift load requirements — our team can assist with selection.
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Do you supply foundation bolts outside Chennai?
Yes. We deliver PAN India — including Mumbai, Bangalore, Hyderabad, Pune, Delhi NCR, Kolkata, Ahmedabad and Visakhapatnam — for both small and bulk orders.
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How do I calculate the weight of foundation bolts for my project?
We provide a foundation bolt weight calculator on our website to help engineers and procurement teams accurately estimate bolt weights for project planning and material requisitions.
Explore Our Products
Foundation & anchor bolts, bracing systems, fasteners and fabrication — tap any product to view full details.
Get in touch
You will find yourself working in a true partnership that results in an incredible experience, and an end product that is the best.
Call us on
(+91) 994 009 7572 / 89563 56925
Email us
info@eshaji.in
