S-96887A334 M20 DIN 557 Square Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance through zinc-plated steel construction for reliable performance in harsh industrial environments
• Superior torque transmission with external square drive design that prevents slipping during high-torque applications
• Exceptional load-bearing capacity with Class 5 strength rating, ensuring reliable performance under heavy mechanical stress
• Precision thread engagement with Class 7H thread fit for secure, vibration-resistant connections in critical assemblies
• Quick installation advantage with coarse metric thread (2.5 mm pitch) that reduces assembly time while maintaining holding power
• Industry-standard compatibility meeting DIN 557 specifications for seamless integration into existing metric fastener systems
• Environmental compliance assurance with RoHS 3 and REACH compliance for global manufacturing and export requirements

Professional Applications & Engineering Value

This M20 square nut delivers exceptional engineering value in demanding industrial applications where vibration resistance and mechanical stability are critical. The zinc-plated steel construction provides superior corrosion protection, extending service life in manufacturing equipment, structural frameworks, and heavy machinery. The external square drive design enables high-torque installation without tool slippage, while the coarse metric thread (2.5 mm pitch) ensures rapid assembly in production environments. Engineered to DIN 557 standards with Class 7H thread fit, this fastener maintains precise tolerances for vibration-prone applications, preventing loosening in automotive assemblies, construction equipment, and industrial machinery where reliability is paramount.

Specification Summary & Compliance

This precision metric square nut features M20 x 2.5 mm coarse thread with Class 7H thread fit tolerance, ensuring precise engagement with mating components. Manufactured to DIN 557 specifications with dimensional accuracy of 30mm width and 16mm height. The fastener meets Class 5 strength rating requirements and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, making it suitable for global industrial applications and export markets.