S-90225A101 M5 DIN 557 Square Nuts
Square Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term durability in harsh industrial environments.
- Precise Class 7H thread fit guarantees reliable, vibration-resistant connections for enhanced assembly security.
- External square drive design allows for easy installation and removal with standard tools, reducing assembly time.
- Metric coarse threading (M5x0.8 mm) provides quick engagement and robust performance in high-vibration applications.
- Compliance with DIN 557 standards ensures consistent quality and interchangeability in European machinery and equipment.
- RoHS 3 and REACH compliance meets strict environmental regulations, making it suitable for global supply chains.
- Compact 8mm width and 4mm height offers space-saving advantages in confined assembly areas.
Professional Applications & Engineering Value
This M5 square nut is engineered to address common industrial challenges like corrosion, vibration loosening, and assembly efficiency. Manufactured from 18-8 stainless steel, it provides excellent resistance to rust and chemical exposure, making it ideal for outdoor equipment, food processing machinery, and marine applications. The metric coarse thread with a 0.8 mm pitch ensures rapid installation and maintains grip under dynamic loads, while the external square drive simplifies tool access in tight spaces. Compliant with DIN 557, it delivers reliable performance in automotive, manufacturing, and structural assemblies where precision and durability are critical.
Specification Summary & Compliance
This square nut features M5x0.8 mm coarse metric threading with a Class 7H thread fit for precise tolerance according to ISO standards. It conforms to DIN 557 manufacturing specifications, with dimensions of 8 mm width and 4 mm height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for industrial use worldwide.
