Stainless Steel 316 Square Nut DIN 557 Plain Finish A4-70 Metric Nuts

Description

The stainless steel 316 square nut (DIN 557, A4-70, plain finish) offers a high-strength, corrosion-resistant fastening solution for applications in marine, chemical, and industrial environments. Compared to 304 (A2-70) square nuts, 316 (A4-70) stainless steel provides superior resistance to harsh conditions, making it ideal for demanding applications. Ever Hardware provides custom made fasteners and customizable packaging.

1. Superior Corrosion Resistance
• A4-70 (316 stainless steel) contains molybdenum, offering better resistance to rust, pitting, and corrosion in saltwater, acidic, and high-moisture environments.
• Suitable for marine, offshore, chemical processing, and food industry applications, where exposure to chlorides and chemicals is common.

2. High Strength and Durability
• With an A4-70 tensile strength rating, these nuts provide strong mechanical performance for load-bearing and heavy-duty applications.
• Resistant to wear, deformation, and impact, ensuring long-lasting fastening in structural and industrial settings.

3. Enhanced Grip and Stability
• The square shape increases surface contact with the material, reducing the risk of loosening under vibration.
• Provides better tool engagement, making it easier to tighten securely compared to hex nuts.
• Ideal for T-slot and channel-based applications, ensuring firm locking in slotted structures.

4. Reliable Fastening for Wood and Metal
• Larger contact area prevents pulling through soft materials like wood, plastics, and aluminum.
• Commonly used in railway construction, metal framing, and bridge supports.

5. Ideal for Extreme Environments
• Performs well in sub-zero temperatures, high heat, and chemically aggressive conditions.
• Suitable for pharmaceutical, food processing, and cleanroom applications due to its non-contaminating, hygienic properties.

6. Compliance with DIN 557 Standards
• Manufactured to DIN 557 specifications, ensuring dimensional accuracy and compatibility with metric bolts.

Conclusion

Stainless steel 316 square nut (DIN 557, plain finish) provides a durable, corrosion-resistant, and high-strength fastening solution. Their excellent resistance to chemicals, saltwater, and extreme temperatures makes them perfect for marine, offshore, food processing, and heavy-duty industrial applications, ensuring long-term reliability and secure fastening in harsh environments.