S-91280A312 M12 x 100 mm ISO 4014, DIN 931 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength with Class 8.8 rating and 110,000 psi capability 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 for faster assembly and reduced cross-threading risk
• Enhanced torque transmission through external hex drive and 19mm head width for secure installation with standard tools
• Versatile partial threading with 30mm minimum thread length for precise clamping control in various material thicknesses
• Consistent dimensional accuracy meeting ISO 4014 DIN 931 specifications for reliable interchangeability across industrial applications
• Durable material properties featuring Rockwell C21 hardness for excellent wear resistance and long service life

Professional Applications & Engineering Value

This M12 hex head screw delivers exceptional engineering value for industrial applications requiring high-strength fastening solutions. The Class 8.8 steel construction provides reliable performance in structural assemblies, machinery frames, and heavy equipment where vibration resistance and load-bearing capacity are critical. The partially threaded design allows for precise clamping force distribution, preventing joint loosening while the coarse metric thread with 1.75mm pitch ensures rapid installation in various materials. The external hex drive and standardized dimensions per ISO 4014 DIN 931 guarantee compatibility with common tools and existing assembly processes, reducing installation time and maintenance costs in construction, manufacturing, and industrial maintenance applications.

Specification Summary & Compliance

This metric hex head screw features precise Class 6g thread fit tolerance and 30mm minimum thread length for consistent performance. Manufactured in compliance with ISO 4014 DIN 931 standards for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. The Class 8.8 strength rating corresponds to 110,000 psi tensile strength and Rockwell C21 hardness, providing reliable performance in demanding fastening applications.