S-90225A103 M8 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 with 18-8 stainless steel construction, ideal for harsh or outdoor environments
- Exceptional thread durability with Class 7H thread fit ensuring reliable, vibration-resistant connections
- Easy installation and removal using standard tools thanks to the external square drive design
- Precision manufacturing to DIN 557 standards guarantees consistent quality and dimensional accuracy
- Wide industrial compatibility with M8 x 1.25mm coarse metric threads for common applications
- Environmental compliance meeting RoHS 3 and REACH regulations for safe, sustainable usage
- Robust mechanical performance from the square nut design providing excellent torque resistance
Professional Applications & Engineering Value
This M8 square nut delivers critical engineering advantages in demanding industrial settings where corrosion resistance and mechanical reliability are paramount. Manufactured from 18-8 stainless steel, it withstands corrosive environments that would degrade ordinary fasteners, making it ideal for machinery, structural frameworks, and outdoor equipment. The external square drive allows for secure tool engagement, preventing slippage during high-torque applications. With metric coarse threading (M8 x 1.25mm), it provides quick assembly in manufacturing lines and maintenance operations while maintaining Class 7H thread fit precision for vibration-resistant joints. Compliance with DIN 557 ensures dimensional consistency across batches, reducing installation errors in automotive, construction, and industrial machinery applications.
Specification Summary & Compliance
This square nut features M8 metric coarse thread with 1.25mm pitch and Class 7H thread fit tolerance per ISO standards. Manufactured to DIN 557 specifications with 13mm width and 6.5mm height dimensions. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial use.
