S-91280A574 M8 x 150 mm ISO 4014, DIN 931, SAE J1199, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior load-bearing capability with Class 8.8 strength rating and 110,000 psi tensile strength for reliable performance in demanding applications
• Enhanced corrosion resistance through zinc plating, extending service life in harsh industrial environments
• Optimized thread engagement with coarse M8x1.25 thread pitch ensuring faster assembly and reduced cross-threading risks
• Secure torque transmission via external hex head design providing positive grip with standard tools
• Controlled thread distribution through partial threading for precise clamping force in specific joint requirements
• Consistent dimensional accuracy maintained through Class 6h thread fit tolerance for uniform performance
• Global compliance assurance meeting ISO 4014, DIN 931, and SAE J1199 standards for international project compatibility

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these M8 hex head screws deliver exceptional mechanical performance where structural integrity is paramount. The Class 8.8 steel construction combined with Rockwell C21 hardness provides optimal balance between strength and ductility, preventing brittle failure under dynamic loads. The zinc-plated finish offers reliable corrosion protection in manufacturing facilities, construction sites, and outdoor equipment. The partially threaded design allows for precise clamping control in assembly operations, while the coarse metric thread ensures rapid installation in time-sensitive production environments. These industrial fasteners are particularly valuable in structural steel connections, machinery assembly, and automotive applications where 110,000 psi tensile strength and standardized dimensions are critical for maintenance and safety compliance.

Specification Summary & Compliance

This M8 hex head screw features precise Class 6h thread fit tolerance according to metric standards, ensuring consistent engagement and load distribution. Manufacturing complies with ISO 4014, DIN 931, and SAE J1199 specifications for dimensional accuracy and mechanical properties. The fastener demonstrates full compliance with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations, making it suitable for environmentally conscious procurement programs. With 150mm length and 22mm minimum thread length, the screw maintains proper thread engagement requirements while the external hex drive configuration ensures compatibility with standard industrial tools.