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Precision Fasteners &
Machinery Components

High-strength bolts, shafts, nuts, and custom special-shaped parts for automotive, agriculture, and industrial applications.

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About Jinhua Machinery

Yuhuan Jinhua Machinery Co., Ltd. is a leading manufacturer of high-strength fasteners and precision components, established in 2013. Located in Yuhuan City, Zhejiang Province, we specialize in automotive, agricultural machinery, and industrial-grade parts.

With a complete management system and strict quality assurance protocols, we combine high-precision CNC equipment with rigorous testing to deliver reliable, durable components trusted by global partners.

2013
Founded
100+
Global Clients
99.8%
Quality Pass Rate
CNC Production Workshop

CNC Production Workshop

Advanced machining for precision parts

Our Core Strengths

R&D Innovation

Continuous investment in research and development ensures cutting-edge solutions for complex fastening and mechanical challenges.

Precision Production

State-of-the-art CNC machinery and automated systems deliver consistent, high-tolerance components at scale.

Customer Service

From initial inquiry to after-sales support, we provide responsive, professional service tailored to your needs.

Our Products

High-strength bolts, shafts, nuts, and custom special-shaped parts engineered for durability and performance in demanding environments.

High Strength Bolt

High Strength Bolt

Grade 8.8 to 12.9, heat-treated alloy steel, ideal for automotive and structural applications.

High Tensile
Piston Connecting Rod Bolt

Piston Connecting Rod Bolt

Precision-engineered for high-performance engines, ensuring reliability under extreme stress.

Engine Critical
Shaft Components

Precision Shafts

Custom shafts with tight tolerances, suitable for transmission, agricultural, and industrial systems.

Custom Machined
Nuts and Fasteners

High-Strength Nuts

Matched to high-tensile bolts, ensuring secure joints in critical assemblies.

Grade 10+
Agricultural Chassis Parts

Agricultural Chassis Parts

Durable components for tractors and farm machinery, resistant to wear and corrosion.

Farm Equipment
Special-Shaped Parts

Special-Shaped Parts

Custom-designed components for unique mechanical and structural requirements.

OEM/ODM
Bridge Accessories

Bridge Fasteners

High-load bolts and connectors designed for structural integrity in bridge construction.

Structural Grade
Automotive Fasteners

Automotive Fasteners

Engine, suspension, and chassis bolts meeting OEM specifications and safety standards.

OEM Quality

Advanced Capabilities

CNC Machining

High-precision CNC turning, milling, and grinding for complex geometries and tight tolerances.

Quality Testing

Comprehensive testing including tensile strength, hardness, and dimensional accuracy in our in-house lab.

Forging & Heat Treatment

Controlled forging and heat treatment processes to enhance material strength and durability.

Global Supply Chain

Reliable logistics and export experience serving clients across Asia, Europe, and North America.

Test Center

In-House Test Center

Ensuring every component meets international standards

10+
Years of Experience
50+
CNC Machines
2000+
Parts Daily
30+
Countries Served

Frequently Asked Questions

What materials do you use for high-strength bolts?

We primarily use alloy steels such as 40Cr, 35CrMo, and SCM435, heat-treated to achieve strength grades from 8.8 to 12.9.

Can you produce custom-designed parts?

Yes, we offer full OEM/ODM services. Provide your drawings or samples, and we’ll manufacture to your exact specifications.

What industries do you serve?

Our products are used in automotive, agricultural machinery, bridge construction, industrial equipment, and marine applications.

What certifications do you have?

We maintain a strict quality assurance system and comply with ISO standards. Specific certifications available upon request.

What is your production lead time?

Typical lead time is 20–30 days after order confirmation, depending on complexity and quantity. Rush orders can be accommodated.

Our Service Process

1

Customer Contact

2

On-site Investigation & Negotiation

3

Confirm Contract

4

Deposit Payment

5

Forging & Processing

6

Quality Inspection

7

Delivery & Feedback

Get in Touch

Reach out for quotes, technical support, or partnership opportunities.

Contact Information

  • Building 15, Phase 1, Chengbei Chuangrong Industrial City, Yuhuan City, Taizhou, Zhejiang, China
  • +86-576-87507338
  • +86-576-87569805
  • [email protected]

Next Steps

For detailed inquiries, product specifications, or to request a sample, please visit our official website.

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