Product Details

Our Stainless Steel DIN 577 Square Nuts are manufactured to provide unmatched reliability and longevity.

• The Stainless Steel Advantage – Material Grades for Every Environment:
  • SS316 (A4-70 / A4-80): The premium choice for maximum corrosion resistance. The addition of molybdenum makes SS316 highly resistant to chlorides, acids, and saltwater. It is the ideal material for marine, coastal, chemical processing, and wastewater treatment applications.
  • SS304 (A2-70): The most popular and versatile grade, offering excellent all-around corrosion resistance. SS304 is perfect for food and beverage processing, architectural applications, and general industrial use where exposure to moisture and mild chemicals is expected.
  • SS201: A cost-effective alternative for dry or mild indoor environments. It provides the look of stainless steel with basic corrosion resistance, suitable for furniture and interior fixtures.
• The DIN 577 Square Advantage: The four-sided geometry is a key functional feature. It provides a much larger contact area than a standard hex nut, which is excellent for tightening and offers superior resistance against loosening from vibration. This shape is perfect for being captured in a channel or slot, allowing for easy one-sided tightening of a bolt.
• Natural, Plain Finish: True stainless steel requires no plating. These nuts feature a plain, self-finished surface that is naturally corrosion-resistant, hygienic, and will not chip or flake over time. The clean, metallic look is both functional and aesthetically pleasing.
• DIN 577 Standard for a Perfect Fit: Manufactured in strict compliance with the DIN 577 standard, these nuts guarantee uniform dimensions, thread profiles, and quality. This ensures a reliable, consistent fit and interchangeability for all your critical fastening needs.

Product Parameters

The technical specifications for our Stainless Steel DIN 577 Square Nuts are detailed below.

Product Features

Our DIN 577 Stainless Steel Square Nuts are the premier choice for robust and lasting connections.

• Superior Corrosion Resistance: Select from SS304 for general use or SS316 for extreme resistance to saltwater, acids, and chemicals.
• Excellent Anti-Loosening Performance: The square shape locks into channels and against flat surfaces, providing outstanding resistance to vibration and rotational forces.
• Large Wrenching Surface: The four flat sides allow for a secure grip and high-torque tightening with standard wrenches.
• Hygienic and Maintenance-Free: The smooth, non-porous stainless steel surface is easy to clean and requires no protective coatings, making it ideal for sanitary applications.
• High and Low Temperature Durability: Stainless steel maintains its strength and integrity across a wide range of temperatures.
• DIN 577 Compliance: Guarantees dimensional accuracy and quality for reliable and repeatable assemblies.

Product Applications

The exceptional properties of stainless steel make these square nuts essential in critical industries.

• Marine and Coastal Construction (SS316): Used for boat building, docks, piers, and any hardware exposed to saltwater spray and harsh marine environments.
• Chemical and Processing Plants (SS316): Ideal for securing pipes, tanks, and equipment that come into contact with corrosive chemicals and acids.
• Food, Beverage, and Pharmaceutical (SS304/SS316): The hygienic, easy-to-clean surface is perfect for machinery and equipment used in sanitary processing lines.
• Architectural and Structural (SS304): Used in building facades, railings, and structural steel connections where both strength and long-term aesthetic appearance are important.
• Water and Wastewater Treatment (SS316): Provides long-lasting, corrosion-free fastening in submerged or constantly wet conditions.
• Agricultural Machinery (SS304): Offers durable and weather-resistant connections for harvesters, tractors, and other farm equipment.