S-98498A119 M48 ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional Load Distribution - The extra wide 80mm hex profile spreads clamping force evenly, reducing stress concentration and preventing joint failure in heavy machinery.
• Guarded Against High-Temperature Relaxation - ASTM Grade 2H certification ensures consistent clamping force under elevated temperatures, critical for industrial equipment and structural applications.
• Robust Thread Engagement - Class 6H thread fit provides precise, reliable mating with bolts, minimizing vibration-induced loosening in dynamic operating environments.
• Superior Material Integrity - Manufactured from high-grade steel meeting ASTM A194 standards, delivering consistent mechanical properties and long-term corrosion resistance.
• Streamlined Maintenance - Standardized M48x5mm coarse thread configuration enables quick installation and replacement using common metric tools, reducing downtime.
• Enhanced Safety Compliance - Full REACH and RoHS 3 compliance eliminates hazardous substance risks, making these nuts suitable for regulated industries worldwide.
• Optimized Torque Transfer - External hex drive design allows high-torque application with standard wrenches, ensuring proper preload in critical connections.

Professional Applications & Engineering Value

This heavy-duty hex nut addresses critical engineering challenges in industrial applications where vibration resistance and load capacity determine system reliability. The extra wide profile fundamentally changes load distribution dynamics, transforming point stresses into distributed clamping forces that protect both the fastener and connected components. When used in structural steel frameworks, mining equipment, or heavy machinery assemblies, the ASTM Grade 2H certification provides assurance against relaxation under thermal cycling - a common failure mode in high-temperature environments. The metric coarse thread configuration maintains its mechanical advantage even in contaminated conditions where fine threads would be compromised. For engineers specifying steel hex nuts for critical connections, this combination of 80mm width and premium Class 6H thread fit delivers predictable performance across the entire service life of industrial equipment.

Specification Summary & Compliance

Manufactured to precise metric dimensions with M48 thread size and 5mm pitch in coarse thread spacing. Threads are precision-cut to Class 6H fit per ISO standards, ensuring compatibility with standard metric bolts. The nut conforms to ASTM A194 material specifications and carries ASTM Grade 2H certification for high-temperature applications. Full compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations confirms environmental responsibility and workplace safety standards.