L Type Foundation Bolts Manufacturer in India — 90° Bend for Secure Concrete Anchoring
Precision 90° bent anchor bolts that lock into concrete for superior pull-out resistance. M12–M100, all grades and finishes, made to your specification. MTC certified, PAN India & export delivery.
Experience
L Type Foundation Bolts — Manufactured for Column Base Plates & Structural Steel
E S Haji & Co.is a leading manufacturer of L Type Foundation Bolts in India, supplying precision-bent anchoring solutions to construction, infrastructure, and heavy engineering projects since 1924. The characteristic 90-degree bend at the embedded end acts as a mechanical key in concrete, delivering outstanding resistance against pull-out and uplift loads.
Every L Type Foundation Bolt is manufactured to exact dimensional tolerances using premium-grade steel. The bend angle, thread length, and embedment depth are produced according to customer structural drawings and project specifications. Available in sizes ranging from M12 to M100 and lengths up to 12 metres on request, all bolts are supplied with full Mill Test Certificates and supported by reliable PAN India delivery.
Designed for cast-in-place applications, these bolts feature a threaded section for securing base plates, columns, and machinery, while the bent leg provides strong anchorage within concrete. Their dependable performance makes them a preferred choice for column base plates and light-to-medium structural loading applications across industrial and infrastructure projects.
Size Range
M12 – M100
Grades
4.6 – 12.9
Standards
ASTM F1554 / IS 5624 / DIN / ISO
Materials
MS · CS · SS · EN8D/19 · Galv · Alloy
Certification
Mill Test Certificates (MTC) with every batch
Key Benefits of Our L Type Foundation Bolts
Every l type foundation bolts we manufacture is built to perform under demanding load and site conditions.
Superior Pull-Out Resistance
The 90-degree bend mechanically locks the bolt into concrete
Structural Stability
Dependable anchoring for columns, base plates and machinery
Corrosion Resistance
Galvanised and SS options for outdoor and coastal sites
High Load Capacity
Grades up to 12.9 for heavy tensile and shear loads
Fast Turnaround & On-Time Delivery
In-house production with consistent lead times and reliable PAN India dispatch for bulk orders.
Custom Manufacturing to Drawing
Diameter, length, thread and finish produced exactly to your engineering drawing.
Wide Material Selection
MS, carbon steel, SS304, SS316, EN8D, EN19, galvanised and alloy steel — one source for all grades.
Certified Materials & MTCs
Premium-grade certified steel supplied with Mill Test Certificates on every batch.
L Type Foundation Bolt Configurations We Manufacture
Standard L-Bolt (90°)
Galvanised L-Bolt
High-Tensile L-Bolt
Stainless Steel L-Bolt
Double-Bend L-Bolt
Custom Threaded L-Bolt
Full Specifications of Our L Type Foundation Bolts
| Specification | Range / Options |
|---|---|
| Diameters | M12, M16, M20, M24, M30, M36, M42, M48, M56, M64, M72, M80, M90, M100 |
| Bend Angle | 90 degrees (custom angles on request) |
| Lengths | As specified (single lengths up to 12 metres on request) |
| Materials | MS, Carbon Steel, SS304, SS316, EN8D, EN19, Galvanised, 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 |
Material Grades We Supply
| Material | Description |
|---|---|
| MS | Cost-efficient, versatile mild steel for general structural use |
| Carbon Steel | Strong and dependable for industrial anchoring applications |
| SS304 | Austenitic stainless — corrosion resistance for general environments |
| SS316 | Marine-grade stainless — superior resistance to chlorides and chemicals |
| EN8D | Medium-carbon steel for higher-strength structural requirements |
| EN19 | Alloy steel engineered for high-tensile, high-temperature service |
| Galvanised | Hot-dip galvanised coating for rust-free outdoor service |
| High-Tensile Alloy Steel | Maximum load-bearing capacity for critical installations |
Standards & Grades
| Standard | Detail |
|---|---|
| ASTM F1554 (Gr 36/55/105) | 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 for steel fasteners |
| Bolt Grades | 4.6, 5.6, 8.8, 10.9, 12.9 — selected to load requirement |
Surface Finishes Available
How We Build Your L Type 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.
Industries We Serve
L Type Foundation Bolts from E S Haji & Co are trusted across construction, energy and process industries throughout India.
Construction & Infrastructure
Column base plates, bridges and high-rise buildings
Heavy Machinery
Anchoring industrial equipment to concrete foundations
Pre-Engineered Buildings (PEB)
Base plate to foundation connections
Oil & Gas
Equipment skids and pipeline supports
Power & Energy
Transformer bases, transmission towers, switchyards and turbine foundations
Renewable Energy
Bases for wind turbines and solar mounting structures.
Water & Wastewater
Equipment foundations and supports for treatment plants.
Telecom & Communication Towers
Antenna masts, telecom towers and communication structure foundations
Mining & Heavy Industry
Crushing equipment, conveyor structures and processing plant foundations
What Our Clients Say
We sourced galvanised L type foundation bolts for a PEB project in Sriperumbudur. Dimensional accuracy was spot on, zero site rejections, and delivery was ahead of schedule.
Ramesh K. Structural Contractor, ChennaiBulk M36 and M48 high-tensile L bolts delivered on schedule with MTCs in order. Competitive pricing for the volume and packaging was secure with no transit damage.
Suresh M. Procurement Manager, PuneIS 5624 compliant Grade 8.8 L bolts delivered ahead of schedule with full MTC documentation. Quality met our power plant structural requirements without any issues.
Dinesh R. Project Engineer, HyderabadLocations 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 l type foundation bolts manufacturing and supply.
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What is an L type foundation bolt used for?
L type foundation bolts are used to anchor structural columns, steel base plates and machinery to concrete foundations. The 90-degree bend embeds into the concrete and resists pull-out and uplift loads, making them the most common choice for column base-plate connections.
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What sizes of L type foundation bolts do you manufacture?
We manufacture L type foundation bolts from M12 to M100 in lengths up to 12 metres on request. Bend angle, thread length and embedment depth are produced to your exact drawing.
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Which materials are used for L type bolts?
We supply L bolts in mild steel, carbon steel, stainless steel SS304 and SS316, EN8D, EN19, galvanised steel and high-tensile alloy steel. SS316 or hot-dip galvanised is recommended for coastal Chennai and outdoor sites.
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What is the difference between L type and J type foundation bolts?
L type bolts have a single 90-degree bend at the embedded end, while J type bolts have a curved hook. L bolts are preferred for column base plates and general structural anchoring where straight embedment with a mechanical bend is sufficient.
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What standards do your L type foundation bolts comply with?
Our L type foundation bolts conform to ASTM F1554 (Grades 36, 55, 105), IS 5624, DIN 529 and ISO 898-1 , in bolt grades 4.6, 5.6, 8.8, 10.9 and 12.9.
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Do you provide Material Test Certificates with L bolts?
Yes. Every batch is supplied with Mill Test Certificates (MTCs) confirming material grade, chemical composition and mechanical properties.
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Can you make custom L type bolts to drawing?
Yes. Custom L type foundation bolts are our specialty. Send your structural drawing with diameter, leg length, thread length, grade and finish and we manufacture to exact specification with PAN India delivery.
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Do you supply L type foundation bolts in Chennai and across India?
Yes. We manufacture and supply L type foundation bolts from our facility in Ambattur, Chennai to all major industrial cities across India including Mumbai, Pune, Hyderabad, Bangalore and Delhi NCR, with export to Gulf and Southeast Asia.
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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
