Headed Bolts

Explore Our Headed Bolt Range

Headed Bolts Manufactured for Strength, Delivered On Time

We offer a complete range of structural bolts with customizable head types and threading, produced in our China-based facility with
strict QC and efficient turnaround times to meet the demands of projects in North America, Europe, Australia, and other international markets.
Ready to get started? For expert assistance, Email us at sales@tuhufasteners.com.

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Hex headed bolts for general fastening applications
Standard six-sided bolts used for general-purpose fastening in structural and mechanical assemblies.
Hex Bolts
Heavy-duty headed bolts for structural steel connections
High-strength bolts designed for critical connections in steel construction.
Structural Bolts
Larger head and shank diameter for use in heavy-duty structural joints.
Heavy Hex Bolts
Headed bolts designed for timber framing applications
Domed-head bolts with finned necks designed for secure embedment in wood.
Timber Bolts
Square-headed bolts used in timber or antique structures
Four-sided head bolts for wrench grip in low-clearance or historical applications.
Square Head Bolts
Headed bolts embedded in concrete foundations
Anchor bolts with forged heads embedded in concrete to secure base plates.
Headed Anchor Bolts
U-shaped bolts used to clamp pipes, rods, or tubing to structural surfaces.
U Bolts
Fish bolts used for securing rail joints with splice bars in railway systems
Heavy-duty fish bolts for joining rail sections with splice bars (fishplates). Designed for high-strength rail joint connections in transit, freight, and industrial track systems.
Fish Bolts / Rail Joint Bolts
High-strength track bolt with nut for fastening rails to tie plates in railway construction
Track bolts engineered to fasten rails to tie plates or rail pads. Ideal for use in rail construction, maintenance, and transit infrastructure with optional galvanized or black oxide coating.
Track Bolts / Rail Bolts
Headed bolts used in roadside and highway guardrails
Specialized bolts for mounting highway guardrail systems with safety and strength.
Guardrail Bolts
Domed-head bolts with square necks that lock into wood or metal during installation.
Carriage Bolts
Bolts with looped heads for lifting or anchoring
Bolts with looped heads for lifting, anchoring, or cable routing.
Eye Bolts
Wide-head bolts used for climbing steps or cable support on poles and towers.
Step Bolts
Fully or partially threaded bolts used in machinery, steelwork, and general construction.
Machine Bolts
Smooth, low-profile head bolts often used where appearance or clearance matters.
Round Head Bolts
Headed bolts with socket drive for precision fastening
Precision bolts with recessed hex drive for clean, flush-mounted fastening.
Socket Cap Screws
Tapered head bolts designed to sit flush with material surfaces.
Countersunk Bolts
Flush-fitting bolts with flat or dome heads used in heavy equipment wear parts.
Plow Bolts
Integrated flange heads for distributing load without separate washers.
Washer Head Bolts
Bolts with built-in flanged heads to resist loosening and spread load.
Hex Flange Bolts
T-shaped bolts designed to fit into slots for adjustable positioning.
T-Head Bolts
Headed bolts with precision shoulder for rotating parts
Bolts with precision-machined shoulders for pivoting or sliding components.
Shoulder Bolts
Pre-assembled structural bolts with twist-off tips for controlled tightening.
Tension Control Bolts

Headed Bolt Specifications & Compatibility


Discover the full technical options for our headed bolts, including size ranges, thread types, surface coatings, and compatible accessories.
Need a custom solution? Contact us at sales@tuhufasteners.com.

Technical Specifications

Hex bolts in different lengths for structural and industrial fastening applications

We manufacture headed bolts in both inch and metric sizes:

• Inch Diameters: 1/4” to 2-1/2”, with custom diameters available up to 4”
• Metric Diameters: M6 to M36 standard, up to M72 upon request
• Length: Custom lengths available up to 40 feet

We support both inch (UNC/UNF) and metric (M) thread systems, and can accommodate BS, ISO, DIN, or custom thread profiles based on project requirements.


Our bolts conform to a wide range of international standards, including:

• ASTM / SAE: A307A, A325, A490, F1554, A449, A354, F3125, SAE J429
• DIN / ISO / EN: Available upon request (e.g., DIN 931/933, ISO 4014/4017, EN 15048, EN 14399)
• British Standards (BS): BS 3692, BS 7419, BS 4190
• Rail & Infrastructure: AREMA, ANSI, GB/T (for railway, transit, and heavy civil applications)
• Custom Certification: Material Test Reports (MTRs), Mill Test Certificates (MTCs), and third-party inspection reports (e.g., SGS, TÜV) available upon request.

Note: Our standard Minimum Order Quantity (MOQ) is 1000 KG to ensure cost-effective shipping and production efficiency.

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Coatings & Finish Options

Assorted bolts including hex bolt, eye bolt, structural bolt, and flange bolt for industrial use

Multiple coating options are available to meet your corrosion and aesthetic requirements:

• Zinc Plated (Clear/Yellow/Black)
• Hot-Dip Galvanized (HDG)
• Plain (Self Color)
• Black Oxide / Phosphate
• Geomet / Dacromet
• Custom coatings upon request

Coating & Packaging

Head Styles Available

Variety of headed bolts including carriage bolt, eye bolt, T-head bolt, square head bolt, and track bolt

We offer a wide range of head styles to meet various structural and functional requirements.

• Common Styles: Hex, Heavy Hex, Square, Round, Flange, Washer Head

• Specialty Styles: Socket Cap, T-Head, Eye Bolt, Shoulder Bolt, Step Bolt, Countersunk, Carriage Bolt, Timber Bolt, Guardrail Bolt, Track Bolt, Plow Bolt, Fish Bolt, Tension Control Bolt, Machine Bolt, U-Bolt

Headed Bolt Range

Compatible Nuts & Washers

Bolt assemblies with nuts and washers for secure fastening in construction and infrastructure projects

We provide matching hardware to ensure optimal performance and full compatibility.

Nuts: Hex nuts, heavy hex nuts, square nuts, flange nuts, locking nuts

Washers: Flat washers, lock washers, beveled washers, square washers


All hardware is available in compatible grades, finishes, and standards.

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Trusted by Industry.
Powered by Experience.

With extensive experience in the fastener industry, TUHU Fasteners delivers reliable solutions from a 3.45-acre factory in China with 1,000 tons of monthly capacity. We support global infrastructure with the quality and speed you can trust.

📩 Need a quote? Reach out at: sales@tuhufasteners.com

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Heavy hex bolts with nuts and washers mounted on steel plate for structural fastening applications

Industry Applications of Headed Bolts


TUHU’s headed bolts are widely used in:

• Structural steel and building construction
• Traffic and highway infrastructure
• Railway and transit systems
• Timber framing and guardrail systems
• Machinery assembly
• Power generation infrastructure and equipment foundations
• Heavy equipment and mining machinery installation


Looking for bolts that meet your industry standards?
Explore real-world use cases or get a tailored quote—our team understands your project needs.

All Industry Applications
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Bolt Thread Lengths: Full vs. Partial Threads

Understand the difference between full thread and partial thread bolts to choose the right option for your structural, mechanical, or assembly needs.

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Zinc plated hex bolt with partial threading for industrial fastening applications

Full Threaded Bolts


Full threaded bolts have threads running along the entire length of the shank. They provide a stronger grip for fastening thin materials or when the bolt needs to be adjusted through the whole length. Ideal for applications requiring maximum adjustability or consistent tension along the full bolt.

Carbon steel hex bolt with short thread length for structural and construction use

Partial Thread Bolts


Partial thread bolts have an unthreaded shank section near the head. This smooth portion adds shear strength and alignment for structural connections. They’re commonly used in heavy-duty joints where load-bearing performance is more important than thread engagement across the entire length.

Why Choose TUHU Fasteners

Trusted Fastener Manufacturer

Trusted supplier of high-quality standard fasteners, including headed bolts, structural bolts, nuts, washers, threaded rods, bent bolts, cutting plates, and iron and aluminum castings. Our expertly manufactured precision fasteners serve industries worldwide with strength, durability, and reliability—making them ideal for heavy-–duty construction and infrastructure projects.

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