5 Key Considerations When Sourcing Bimetal Screws for Industrial Projects

1. Material Composition 🛠️

Bimetal screws typically feature a stainless steel head for corrosion resistance and a carbon or alloy steel core for strength. The exact grades used (e.g., 304, 316 stainless, or high-tensile carbon steel) determine performance in specific environments. For example:

• 316 stainless offers better resistance to saltwater exposure.

• Alloy steel cores provide higher tensile strength for heavy-load applications.

2. Corrosion Resistance in Real Conditions 🌊

Not all corrosion resistance is equal. When sourcing, request salt spray test results (ASTM B117) or equivalent standards to confirm performance. For marine, chemical, or coastal projects, look for screws with proven resistance to pitting and crevice corrosion.

3. Manufacturing Standards & Quality Control

Industrial projects require consistency. Ask suppliers about:

• Manufacturing certifications (ISO 9001, IATF 16949).

• Inspection processes (dimensional checks, hardness testing).

• Bonding method between metals (solid-state bonding vs. mechanical pressing).
  A strong bond ensures the head and core won’t separate under torque or vibration.

4. Fit for Application & Environment ⚙️

Different industries place unique demands on fasteners:

• Aerospace: weight reduction and vibration resistance.

• Marine: maximum corrosion protection.

• Energy & Infrastructure: load-bearing stability in high winds.
  Your supplier should recommend the most suitable design and coating based on your project’s environmental challenges.

5. Supplier Expertise & Technical Support

Choosing a supplier is about more than just price. Look for companies with:

• Proven track records in bimetal fastener production.

• Ability to provide engineering drawings and performance data.

• Clear after-sales support for technical inquiries.

Final Note from Fasto

At Fasto, our bimetal screws are designed for industries where failure is not an option. By combining precision engineering with rigorous testing, we help ensure long-term performance in the harshest industrial environments. Whether your project is onshore, offshore, or airborne, we can provide tailored fastening solutions backed by reliable technical support.

📧 info@fasto.cn
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