S-90180A675 M20 x 90 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 demanding applications
• Superior corrosion resistance through blue-dyed zinc plating that provides both aesthetic appeal and enhanced durability in harsh environments
• Optimized thread engagement with M20 coarse threading (2.5mm pitch) ensuring faster installation and reduced cross-threading risks
• Precise mechanical fit achieved through Class 6g thread tolerance for consistent mating with corresponding nuts and threaded components
• Enhanced torque transmission via external hex drive design with 30mm head width for secure tool engagement during installation
• Controlled fastening distribution through partial threading that concentrates clamping force where needed most
• Global compliance assurance meeting ISO 4014 manufacturing standards along with RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

This M20 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 resistance to vibration loosening and mechanical stress, making it ideal for construction frameworks, machinery assembly, and structural connections. The blue-dyed zinc-plated finish offers both corrosion protection and visual identification benefits in complex assemblies. With its coarse metric thread and partial threading design, this fastener ensures rapid installation while maintaining precise clamping force distribution. The external hex drive accommodates standard tools for efficient maintenance and disassembly operations, reducing downtime in manufacturing and equipment servicing scenarios.

Specification Summary & Compliance

This hex head screw features precise Class 6g thread fit according to ISO metric standards, ensuring consistent engagement with mating components. The manufacturing process strictly adheres to ISO 4014 specifications (equivalent to DIN 931) for dimensional accuracy and mechanical properties. Environmental compliance is guaranteed through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, confirming the absence of restricted substances. The fastener maintains Rockwell C32 hardness and meets all mechanical requirements for Class 10.9 strength grade fasteners in industrial applications.