S-91280A310 M12 x 80 mm ISO 4014, DIN 931 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 8.8 strength grade and 110,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance thanks to black steel construction and compliance with RoHS 3 and REACH environmental regulations
• Optimized thread engagement with Class 6g thread fit and coarse 1.75mm pitch ensuring secure fastening and vibration resistance
• Enhanced installation efficiency through external hex drive design and 19mm head width for easy tool access and torque application
• Versatile partial threading with 30mm minimum thread length providing flexibility for various material thicknesses
• Industry-standard compatibility meeting ISO 4014/DIN 931 specifications for seamless integration into existing assemblies
• Durable mechanical properties with Rockwell C21 hardness ensuring long-term reliability under mechanical stress

Professional Applications & Engineering Value

This M12 hex head screw delivers critical engineering solutions for industrial applications where high tensile strength and reliability are paramount. The Class 8.8 steel construction provides exceptional resistance to mechanical stress, making it ideal for structural assemblies, machinery frames, and heavy equipment where vibration and dynamic loads are common. The partially threaded design with 30mm minimum thread length allows for precise clamping force distribution across varying material thicknesses, while the coarse metric thread (M12x1.75) ensures rapid installation and superior resistance to loosening. The external hex drive with 19mm head width facilitates efficient torque application in confined spaces, significantly reducing assembly time in manufacturing, construction, and automotive applications where ISO 4014/DIN 931 compliance is required for quality assurance.

Specification Summary & Compliance

This metric hex screw features precise Class 6g thread fit tolerance and right-hand thread direction with coarse thread spacing (1.75mm pitch). Manufacturing adheres to ISO 4014/DIN 931 standards for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial and commercial applications worldwide.