S-93474A235 M12 x 50 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 capability 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 demanding industrial environments
• Enhanced stability and distribution through the integrated flange design, eliminating the need for separate washers and reducing assembly time
• Optimized thread engagement with Class 6g thread fit and coarse 1.75 mm pitch, ensuring secure fastening and resistance to vibration loosening
• Robust material integrity with Rockwell C32 hardness, maintaining structural reliability under repeated loading conditions
• Convenient installation and removal with standard external hex drive and 16 mm head width, compatible with common industrial tools
• International compliance assurance meeting ISO 898-1 and DIN 6921 specifications for consistent quality and global project compatibility

Professional Applications & Engineering Value

This M12 hex flange screw delivers critical engineering advantages for heavy-duty industrial applications where vibration resistance and structural integrity are paramount. The partially threaded design provides optimal clamping force concentration while the integrated flange distributes load evenly across joined surfaces, preventing surface damage and maintaining joint integrity. Manufactured from zinc yellow-chromate plated steel, this fastener offers superior protection against corrosion in challenging environments including outdoor equipment, machinery assembly, and structural frameworks. The Class 10.9 strength rating and 150,000 psi tensile strength ensure reliable performance in high-stress applications, while the coarse metric thread with 1.75 mm pitch facilitates quicker installation and superior resistance to vibration-induced loosening in dynamic load conditions.

Specification Summary & Compliance

This metric hex flange screw features precise M12 x 1.75 thread dimensions with Class 6g thread fit tolerance according to ISO metric standards. The fastener meets ISO 898-1 mechanical properties specification and conforms to DIN 6921 dimensional requirements for flange head screws. With a defined minimum thread length of 30 mm on the 50 mm overall length, the screw ensures proper engagement depth. The manufacturing process adheres to international quality standards, with the zinc yellow-chromate plating providing corrosion protection while maintaining compliance with industrial fastener regulations for mechanical performance and dimensional accuracy.