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Custom Fasteners

Committed to the production of carbon steel and stainless steel fasteners, stamping parts and non-standard custom parts.


Founded in 2003, Haiyan Yuanda Metal Products Co., Ltd. is a China Fasteners Manufacturers and Wholesale Fasteners Suppliers dedicated to the production of carbon steel and stainless steel fasteners, stamping parts and non-standard custom parts. The annual production capacity can exceed 5,000 tons, strong technical force, complete production equipment, reliable product quality, good mechanical performance, widely used in construction, machinery, auto parts, breeding and other industries.

  • Customized Service
    Customized Service

    We mainly make customized products, we develop and produce products according to the drawings or samples provided by customers.

  • Quality Guarantee
    Quality Guarantee

    Quality Guarantee Quality Guarantee Yuanda after more than 20 years of technology accumulation and precipitation for the industry to improve performance cost reduction contributed to the strength of many years of market.

  • Production Capacity
    Production Capacity

    We have complete production equipment, with an annual output of more than 5,000 tons, which can meet the needs of customers with different purchase volumes.


The News & Blog From Us

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Industry Knowledge Extension

What are the primary factors that contribute to the corrosion resistance of fasteners in different industrial applications?

The corrosion resistance of fasteners in various industrial applications is influenced by several factors that interact to determine their durability and longevity. Some primary factors include:
Material Selection: Choosing the right material for fasteners is crucial. Stainless steel, titanium, and corrosion-resistant alloys are commonly used due to their inherent resistance to corrosion. Each material has specific properties that make it suitable for different environments.
Coatings and Surface Treatments: Applying protective coatings like zinc plating, galvanization, or epoxy coatings can create a barrier between the fastener and the surrounding environment, preventing direct contact with corrosive agents.
Environmental Exposure: The type of environment the fasteners are exposed to significantly impacts corrosion. Factors like humidity, temperature fluctuations, chemical exposure, and proximity to saltwater or harsh chemicals play a role.
Electrochemical Potential: When different metals come into contact (galvanic coupling), it can create a corrosion cell. Understanding the electrochemical potential of materials used in an assembly can help prevent galvanic corrosion.

How do manufacturers ensure the compatibility of fasteners?

Fastener Type: Selecting the appropriate type of fastener (screw, bolt, nut, rivet, etc.) based on the intended application and load requirements.
Thread Specifications: Designing threads that are compatible with mating parts, ensuring proper fit and engagement without binding or cross-threading.
Dimensions: Ensuring that the fastener dimensions (length, diameter, head style) match the requirements of the assembly.
Material Selection:
Material Compatibility: Choosing materials that are compatible with the materials of the components being fastened. This involves considering factors like galvanic compatibility to prevent corrosion issues.
Corrosion Resistance: Selecting materials that have the necessary corrosion resistance properties for the specific environment in which the fasteners will be used.
Testing and Validation:
Mechanical Testing: Conducting mechanical tests to verify the fastener's strength, load-bearing capacity, and resistance to various stresses (tensile, shear, torsion).
Corrosion Testing: Subjecting fasteners to accelerated corrosion tests in simulated environments to ensure they will withstand the expected conditions.