S-97478A106 M12 x 55 mm DIN 6914, ISO 7412 Metric High-Strength Steel Heavy Hex Head Screws for Structural Applications

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with hot-dipped galvanized steel coating, ensuring long-term durability in harsh industrial environments.
• High tensile strength of 150,000 psi and Class 10.9 rating for reliable performance under heavy loads and vibration.
• Precise Class 6g thread fit and coarse 1.75mm pitch for quick assembly and secure fastening in structural applications.
• Partially threaded design with 32mm grip length for optimal clamping force distribution and joint integrity.
• External hex drive and hex head for easy installation with standard tools, reducing assembly time and labor costs.
• Compliance with DIN 6914/ISO 7412 standards ensures interchangeability and quality consistency in European and global projects.
• RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence for sustainable sourcing.

Professional Applications & Engineering Value

This M12 hex head screw is engineered to address critical challenges in heavy-duty industrial and construction settings, where corrosion resistance and high tensile strength are paramount. The hot-dipped galvanized steel material provides a robust barrier against moisture and chemicals, extending service life in outdoor or corrosive environments. With a Class 10.9 strength grade and Rockwell C32 hardness, it withstands extreme stress and fatigue, making it ideal for structural steel connections, machinery assembly, and infrastructure projects. The partial threading and coarse metric thread design enhance grip and prevent loosening under dynamic loads, while the external hex drive simplifies maintenance and disassembly. By meeting DIN 6914 and ISO 7412 specifications, it ensures reliable performance in standardized applications, reducing downtime and replacement costs.

Specification Summary & Compliance

This screw features a metric M12 x 1.75mm coarse thread with Class 6g thread fit tolerance for precise engagement. It adheres to DIN 6914 and ISO 7412 manufacturing standards, ensuring dimensional accuracy and mechanical consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting environmental and health safety in industrial supply chains.