Bolt

Bolt Supplier

Bolts are externally threaded fasteners designed to be used with nuts or internally threaded components to create secure, removable, and high-strength mechanical connections.

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DIN933 Hex Cap Bolt Grade 8.8 | Structural Hex Bolt Manufacturer China

DIN933 hex cap bolt is a fully threaded hexagonal head fastener designed for structural and mechanical assemblies requiring uniform load distribution and metric standard compliance. It is used in

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DIN912 Allen Bolt Supplier | High Precision Socket Head Cap Screw

DIN912 Allen bolts, also known as socket head cap screws, are precision fasteners with an internal hex drive. They are engineered for applications requiring high torque, compact installation space,

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DIN7991 Hex Socket Screw

DIN 7991 hex socket countersunk head screws are precision fasteners designed for flush mounting, offering secure torque control for industrial and automotive assemblies, robotics, and sheet metal

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ASTM A325 Hex Head Screw

ASTM A325 Hex Head Screws are heavy hex structural bolts designed to provide consistent clamping force and high load capacity for steel connections. They are used with matched heavy hex nuts and

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High Strength TC Bolts

High strength TC bolts are engineered fasteners designed to deliver reliable mechanical performance under demanding structural, mechanical, and industrial load conditions.

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Zinc Plated Stud Bolt

Zinc Plated Stud Bolts are double-ended threaded fasteners designed for structural and industrial applications requiring stable clamping force and moderate corrosion resistance.

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Carbon Steel U Bolt Clamp

Carbon steel U-bolt clamps are precision fasteners designed to secure pipes, rods, or structural components while resisting vibration and allowing adjustable positioning. They are commonly used in

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Carriage Bolt Yellow Zinc Plated Grade 4.8 8.8 Manufacturer

Yellow zinc plated carriage bolts (also known as round head square neck bolts or DIN 603 coach bolts) are structural fastening components designed for secure wood-to-wood, wood-to-metal, and selected

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DIN188 T Bolt HDG Grade 8.8 Channel Bolt Manufacturer

DIN188 T Bolts are T-head fasteners designed for installation in compatible channel profiles, T-slots, and mounting systems.

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DIN 6921 Flange-Type Structural Fastener

DIN 6921 Flange-Type Structural Fasteners are manufactured with an integrated flange under the hexagonal head, providing a larger bearing surface and improved load distribution without the need for

Specification

Product Name:	Bolt
Standard:	ASTM/ANSI,EN ISO,AS
Material	Stainless steel :SS201, SS202, SS303, SS304, SS316, SS316L, SS904L, F593
Material	Carbon steel:Q195, Q235, 35K, 45K, 42Grmo, 307A, 307B, A325, A394, A490, A449
Finishing	Plain, Black, zinc-plated, HDG, Nickel, Gr, Dacromet.
Production	M2-M24:Cold Froging,M24-M100 Hot Forging
Process	Machining and CNC for Customized fastener
Certs	Material Certs and inspection certs are available
Samples	Free Samples for standard fastener

Features

High load-bearing capability

Reliable mechanical fastening performance

Available in multiple head styles and thread types

Excellent tensile and shear strength

Wide range of material options

Corrosion-resistant surface treatments available

Suitable for indoor and outdoor environments

Easy installation and maintenance

Applications

Bolts are widely used in:

Building and infrastructure projects

Bridges and highways

Machinery manufacturing

Automotive industry

Renewable energy systems

grade-8-8-yellow-zinc-plated-carriage-boltbac2a

Solar mounting systems

Telecommunications towers

Railway transportation

Manufacturing Process

Our modern intelligent factory employs an efficient closed-loop manufacturing process to guarantee "zero defect" quality in large-scale production:

Raw Material Inspection

Wire Rod Preparation

Cold Heading or Hot Forging

Head Forming

Thread Rolling

Heat Treatment

Surface Finishing

Dimensional Inspection

Mechanical Property Testing

Final Inspection and Packaging

Packaging & Delivery

Packaging solutions include:
Small box packaging
Bulk carton packaging
Poly bag packaging
Export-standard cartons
Palletized packaging
Wooden crate packaging

Delivery methods:
Sea Freight
Air Freight
Railway Transportation

Lead Time

Quantity (kilograms)	10 - 1000	1001 - 5000	5000 - 50000	> 50000
Lead time (days)	7	15	30	To be negotiated

FAQ

Q: What types of bolts do you manufacture?

A: We manufacture hex bolts, carriage bolts, flange bolts, anchor bolts, U-bolts, eye bolts, stud bolts, structural bolts, and custom bolts.

Q: What materials are available?

A: Carbon steel, alloy steel, stainless steel, brass, and other customized materials are available.

Q: Which standards can you produce?

A: DIN, ISO, ASTM, ANSI, SAE, UNC, UNF, and customer-specific standards.

Q: Do you support bulk orders and long-term supply projects?

A: Yes. We support wholesale supply, project procurement, OEM production, and long-term strategic cooperation for global customers.

Q: Do you offer free samples?

A: We provide free samples for existing stock items. You only pay the shipping cost. For custom samples, a tooling/sample fee applies, which is refundable upon volume order.

As one of the most professional bolt manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. Please feel free to wholesale bulk high quality bolt in stock here and get pricelist from our factory. Customized orders are welcome.