S-97478A141 M20 x 90 mm DIN 6914, ISO 7412 Metric High-Strength Steel Heavy Hex Head Screws for Structural Applications

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 psi tensile strength and Class 10.9 rating for reliable performance in high-stress applications
• Superior corrosion resistance through hot-dipped galvanized steel construction, extending service life in harsh industrial environments
• Optimized thread engagement with Class 6g thread fit and M20x2.5 coarse thread pitch ensuring secure fastening and vibration resistance
• Enhanced installation efficiency featuring external hex drive and 32mm head width for easy tool access and high torque application
• Precision engineering compliance meeting DIN 6914/ISO 7412 standards for consistent quality and dimensional accuracy
• Partial threading design with 33mm thread length and 57mm grip length providing optimal clamping force distribution
• Regulatory compliance assurance with RoHS 3 and REACH compliance for environmentally responsible manufacturing

Professional Applications & Engineering Value

These M20 hex head screws deliver exceptional engineering value in demanding industrial applications where structural integrity and corrosion resistance are paramount. The hot-dipped galvanized steel construction provides superior protection against environmental degradation, making them ideal for construction, heavy machinery, and infrastructure projects exposed to harsh conditions. The Class 10.9 strength rating combined with 150,000 psi tensile strength ensures reliable performance in high-vibration environments and heavy-load applications. The metric coarse thread with 2.5 mm pitch facilitates quick installation while maintaining secure fastening, and the partial threading design optimizes clamping force distribution across the 57 mm grip length. Engineered to DIN 6914/ISO 7412 standards, these external hex drive fasteners offer consistent dimensional accuracy and compatibility with standard industrial tools.

Specification Summary & Compliance

This M20x2.5 hex head screw features Class 6g thread fit tolerance and metric coarse threading with precise dimensional compliance to DIN 6914/ISO 7412 manufacturing specifications. The fastener maintains Rockwell C32 hardness and meets rigorous international standards for heavy-duty applications. Regulatory compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental directives, ensuring responsible manufacturing practices and material safety for global industrial use.