Anchors
Anchor Bolts (Foundation Bolts) Manufacturer, Wholesaler, Supplier & Exporter
Anchor bolts embed into concrete foundations to hold structural steel columns, machine bases, and equipment skids in place. We manufacture L-type, J-type, and headed anchor bolts to ASTM F1554 and IS 5624 in custom lengths and grades.
Anchor bolts are cast into concrete before it cures, which means there's no second chance to fix a placement error the way there is with a post-installed anchor — the embedment depth, projection length, and bolt pattern all need to be correct on the structural drawing before the pour, not adjusted afterward. This is why anchor bolt orders are almost always tied to an approved structural drawing rather than a generic catalog size.
The choice between L-bolt, J-bolt, and headed anchor bolt comes down to how the load is expected to pull on the embedded end: L and J bolts rely on the bend to resist pull-out, while a headed anchor bolt uses a forged or welded head for a more predictable, testable pull-out capacity — which is why headed anchor bolts are increasingly preferred on projects with strict seismic or wind-load engineering requirements.
Minimum Order — Container Quantity (Approx.)
A standard 20ft container (~20 tons) holds approximately 30,000-60,000 pieces of anchor bolts in common sizes (M12-M16), fewer for longer, larger-diameter foundation bolts. Exact quantity depends on size and length and is confirmed at quote time.
You don't need a full container to order. Hurain Engitech & Trade — the group Global Fasteners Exports operates under — regularly ships smaller, partial-container (LCL) orders of just a few pallets or boxes for buyers who don't yet need FCL volume, consolidated with other cargo to keep freight cost reasonable.
Specifications
Standards
ASTM F1554 Grade 36/55/105, IS 5624.
Types
L-bolt, J-bolt, headed anchor bolt, and swage/wedge anchor variants.
Size range
M12 to M100, lengths up to 3 meters on custom order.
Finish
Hot-dip galvanized as standard for embedded corrosion protection.
Applications
Structural steel foundations
Column base plates in industrial sheds, warehouses, and towers.
Heavy machinery bases
Anchoring compressors, generators, and pumps to concrete plinths.
Wind & solar structures
Foundation anchoring for towers and mounting frames.
Bridges & infrastructure
Bearing and railing anchor systems.
Materials Available
Steel
Corrosion-resistant
Tensile and bend testing performed per ASTM F1554 for each grade, with mill certificates supplied for structural buyers.
How We Manufacture & Export This Product
- 1
Drawing & spec review
Confirm bolt type, length, grade, and embedment depth from structural drawings.
- 2
Bending & threading
Hot or cold bending for L/J types, followed by thread rolling on the exposed end.
- 3
Heat treatment
As required for higher ASTM F1554 grades.
- 4
Galvanizing & export packing
Hot-dip galvanizing, bundling, and export documentation for project shipments.
Export Track Record
Supplied in custom lengths for structural steel fabricators and EPC contractors on export orders.
Real-World Use Cases
Column base plates
Anchoring structural steel columns to concrete foundations in industrial sheds and multi-story frames.
Machinery foundation bolting
Securing compressors, generators, and pumps to concrete plinths against vibration and dynamic load.
Tower and mounting-frame foundations
Wind, solar, and transmission tower base connections requiring long embedment lengths.
Common Mistakes Buyers Make
Ordering standard catalog lengths for a custom foundation
Embedment depth and projection are project-specific — a generic length often doesn't match the actual slab or footing thickness.
Skipping galvanizing on embedded bolts
Even embedded in concrete, exposed threads and the projecting section need corrosion protection matched to the environment.
Confusing L-bolts and J-bolts
The two look similar but have different pull-out behavior — always confirm which one the structural drawing actually calls for.
Glossary of Terms
- Embedment depth
- How far the anchor bolt extends into the concrete — a critical structural value, not a supplier's default.
- Projection length
- How far the bolt protrudes above the concrete surface, sized to clear the base plate, washers, and nut with adequate thread engagement.
- Headed anchor bolt
- An anchor bolt with a forged or welded head (instead of a bend) for more predictable, testable pull-out resistance.
Quality Inspection We Perform
Dimensional inspection
Thread gauge, length, diameter, and head/drive geometry checked against the specified standard.
Material verification
Grade and material composition confirmed against the order specification, with mill test certificates on request.
Mechanical testing
Tensile strength, hardness, and proof-load testing on sample batches, particularly for structural and high-tensile grades.
Finish & coating check
Plating thickness, galvanizing coverage, or passivation quality inspected before packing.
HS Code & Customs Classification
Most fasteners fall under HS Chapter 73 (articles of iron or steel) or Chapter 74/76 for brass and aluminum items — the exact 8-10 digit subheading depends on the specific product and material. We include the HS code on the commercial invoice; confirm the applicable import duty with your customs broker, since rates vary by country and trade agreement.
Packaging & Export Labeling
Export packing is chosen to survive ocean freight and container loading without corrosion or damage: corrosion-protected paper or oil coating where needed, then cartons, drums, or bulk bags, palletized or crated for the container. We can match specific labeling, barcoding, or carton-marking requirements for OEM and repeat buyers.
Countries We Export Anchor Bolts To
View all markets →Buying guide
How to Choose a Reliable Anchor Bolts (Foundation Bolts) Manufacturer, Wholesaler, Supplier & ExporterWhy anchor bolts should never be sourced from a generic catalog size, and what to verify before a supplier ships foundation bolts for your project.
Frequently Asked Questions
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