S-96887A125 M16 DIN 557 Square Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black zinc-plated steel coating for reliable performance in harsh industrial environments
• Superior load distribution thanks to the square design that prevents rotation and provides greater surface contact area
• High-strength performance with Class 5 mechanical properties ensuring dependable operation under heavy loads
• Precision thread engagement through Class 7H thread fit for secure, vibration-resistant connections
• Quick installation efficiency with external square drive design enabling easy wrench access and fast tightening
• Industry-standard compatibility meeting DIN 557 specifications for reliable interchangeability in metric applications
• Optimized for coarse threading with 2mm pitch providing faster assembly and reduced cross-threading risks

Professional Applications & Engineering Value

This M16 square nut delivers exceptional engineering value in demanding applications where vibration resistance and structural integrity are paramount. Manufactured from black zinc-plated steel, it provides superior corrosion protection for machinery, construction equipment, and industrial assemblies exposed to moisture or harsh conditions. The external square drive design allows for high-torque installation without rounding concerns, while the coarse metric thread (2mm pitch) ensures rapid assembly and disassembly in maintenance operations. The Class 7H thread fit guarantees precise mating with compatible bolts, eliminating play and preventing loosening under dynamic loads. These DIN 557 certified fasteners are particularly valuable in structural frameworks, heavy machinery, and transportation equipment where reliability cannot be compromised.

Specification Summary & Compliance

This square nut features M16x2mm metric coarse threading with Class 7H thread fit tolerance according to ISO standards, ensuring precise dimensional accuracy. The fastener meets DIN 557 specifications for square nuts and carries a Class 5 strength grade rating. Dimensions include 24mm width and 13mm height for consistent performance. The black zinc-plated surface treatment provides corrosion protection while maintaining compliance with RoHS and REACH environmental standards for industrial applications.