S-93474A234 M12 x 40 mm ISO 898-1, DIN 6921 High-Strength Metric Class 10.9 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 strength grade and 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh industrial environments
• Optimized installation efficiency through external hex drive design and coarse thread pitch (1.75mm) for faster assembly and reduced installation time
• Enhanced stability and distribution from the integrated flange design, eliminating the need for separate washers and preventing surface damage
• Precise thread engagement with Class 6g thread fit ensuring consistent performance and vibration resistance in mechanical assemblies
• Full-threaded design maximizing grip length and providing uniform clamping force across the entire fastener length
• Rockwell C32 hardness maintaining structural integrity under heavy loads and repeated use conditions

Professional Applications & Engineering Value

These M12 hex head screws deliver critical engineering solutions for industrial applications where high tensile strength and corrosion resistance are paramount. The zinc yellow-chromate plated steel construction provides exceptional protection against environmental factors, while the flanged design (DIN 6921) distributes clamping force effectively, preventing joint loosening in vibrating machinery. The Class 10.9 strength rating and 150,000 psi tensile strength make these fully threaded metric screws ideal for heavy equipment, structural frameworks, and automotive assemblies where failure is not an option. The coarse thread pitch ensures quick installation in production environments, reducing labor costs while maintaining ISO 898-1 compliance for quality assurance.

Specification Summary & Compliance

This M12 x 1.75mm hex head screw features Class 6g thread fit tolerance and fully threaded design with 40mm length and 26.6mm flange diameter. Manufactured to ISO 898-1 standards with DIN 6921 flange specifications, ensuring dimensional accuracy and performance reliability. The fastener is REACH compliant (EC 1907/2006) and meets industrial requirements for right-hand thread direction and external hex drive compatibility with standard tools.