Import vs Domestic Fasteners Differences

Differences between import and domestic fasteners:

1. Material Standards

• Import: ASTM, DIN, ISO international standards
• Domestic: GB national standards
• Material purity: Import products have stricter impurity control

2. Manufacturing Process

• Import: High automation, stable dimensional accuracy
• Domestic: Varying process levels
• Heat treatment: Import products have better hardness uniformity

3. Surface Treatment

• Import: Uniform plating, salt spray test 500h+
• Domestic: Standard electro-galvanized 72-200h
• High-end domestic: Approaching import level

4. Price Comparison

• Import products: 30-100% higher price
• Domestic quality: Cost-effective
• Standard domestic: Significant price advantage

Selection Guide:

• High-end equipment, export products → Import brands
• General industrial applications → Domestic quality brands
• Cost-sensitive projects → Standard domestic brands