S-91310A422 M24 x 120 mm ISO 4014, DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 strength rating and 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior durability and wear resistance thanks to Rockwell C32 hardness and high-grade steel construction
• Optimized torque transmission through external hex drive and 36mm head width for secure installation with standard tools
• Secure coarse thread engagement with M24x3mm metric threading providing excellent vibration resistance in demanding environments
• Versatile partial threading design allowing both clamping and alignment functions in structural assemblies
• Guaranteed dimensional precision with Class 6g thread fit ensuring consistent performance and interchangeability
• Full regulatory compliance meeting ISO 4014, RoHS 3, and REACH standards for global industrial applications

Professional Applications & Engineering Value

This M24 hex head screw delivers critical engineering solutions for heavy-duty industrial applications where failure is not an option. The Class 10.9 steel construction provides exceptional tensile strength (150,000 psi) that withstands extreme mechanical stresses in construction, machinery, and structural steelwork. The coarse thread 3mm pitch design ensures rapid assembly and superior vibration resistance, while the partially threaded configuration allows for both precise clamping and alignment functions. With external hex drive compatibility, installation is streamlined using standard industrial tools, reducing assembly time and labor costs. The combination of Rockwell C32 hardness and precise metric threading ensures long-term reliability in corrosive environments and high-cycle applications, making it ideal for bridge construction, heavy equipment manufacturing, and industrial machinery where structural integrity is paramount.

Specification Summary & Compliance

This hex head screw features precise Class 6g thread fit tolerance per ISO metric standards, ensuring consistent performance across industrial applications. Manufacturing strictly adheres to ISO 4014 specifications (equivalent to DIN 931) for dimensional accuracy and mechanical properties. The fastener maintains full compliance with RoHS 3 (2015/863/EU) for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety. With right-hand thread direction and coarse thread spacing, the screw delivers reliable performance in accordance with international engineering standards for industrial fasteners.