Hardware Products
A4-70 Stainless Steel Hex Nuts
Precision-machined A4-70 (AISI 316) stainless steel hex nuts offering excellent corrosion resistance and reliable clamping force. Manufactured to ISO 3506-2 and DIN 934 standards, these nuts are the preferred choice for marine, chemical, and food-grade fastening applications where long-term durability is essential.
Key Features
AISI 316 (A4) stainless steel with molybdenum for superior chloride resistance
Property class 70 with proof load matching A4-70 bolt assemblies
Precision ISO metric threading for consistent engagement
Compliant with ISO 3506-2, DIN 934, and ISO 4032 standards
Passivated finish for enhanced surface protection
Full dimensional inspection and material certification
Non-magnetic and suitable for hygienic environments
Technical Specifications
| Material | AISI 316 / 1.4401 Stainless Steel |
| Property Class | A4-70 |
| Proof Load | Per ISO 3506-2 |
| Size Range | M6 – M64 |
| Thread Type | ISO Metric Coarse / Fine |
| Standards | ISO 3506-2 / DIN 934 / ISO 4032 |
| Surface Finish | Passivated / Plain |
| Cr Content | 16.0 – 18.0% |
| Ni Content | 10.0 – 14.0% |
| Mo Content | 2.0 – 3.0% |
| Max Hardness | 250 HB |
Material Properties
- High strength-to-weight ratio for optimal performance
- Excellent corrosion and chemical resistance
- Non-conductive and electrically insulating
- UV resistant for outdoor applications
- Low thermal conductivity
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