S-91029A123 M12 x 60 mm ISO 4017, DIN 933 Extreme-Strength Metric Class12.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with 170,000 PSI tensile strength, ideal for high-stress industrial assemblies
• Superior corrosion resistance due to zinc yellow-chromate plating, extending service life in harsh environments
• Maximum hardness and wear resistance with Rockwell C39 rating, reducing deformation under heavy loads
• Reliable coarse thread engagement with M12x1.75mm pitch, enabling faster installation and reduced cross-threading risks
• Full threading along the 60mm length provides consistent clamping force across the entire fastener
• Precise external hex drive design ensures secure tool grip and efficient torque transfer during installation
• International standard compliance with ISO 4017/DIN 933 guarantees interchangeability and quality assurance

Professional Applications & Engineering Value

This M12 hex head screw delivers critical performance in demanding applications where failure is not an option. The Class 12.9 steel construction provides the highest grade metric fastener strength, specifically engineered to withstand extreme vibrational loads and dynamic stresses in heavy machinery, automotive assemblies, and structural steel connections. The zinc yellow-chromate plating creates a protective barrier against oxidation and chemical exposure, significantly outperforming standard zinc coatings in industrial environments. With its fully threaded coarse pitch design, installation time is reduced while maintaining secure fastening in both metallic and composite materials. The external hex drive offers superior torque transmission compared to internal drive systems, preventing tool slippage and head stripping during high-tension applications.

Specification Summary & Compliance

Manufactured to exact Class 6h thread fit tolerances ensuring precise mating with corresponding nuts and threaded holes. This metric hex head screw complies with ISO 4017/DIN 933 specifications for dimensional accuracy and mechanical properties. The 60mm length with M12x1.75mm coarse threads provides optimal engagement depth for most industrial applications. Meets RoHS and REACH environmental compliance standards for hazardous substance restrictions.