S-90180A658 M12 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 – Class 10.9 strength grade and 150,000 psi tensile strength ensure reliable performance under high-stress conditions
• Superior Corrosion Resistance – Blue-dyed zinc-plated finish provides enhanced protection against rust and environmental degradation
• Optimized Thread Engagement – Coarse 1.75mm pitch and Class 6g thread fit enable faster assembly and secure fastening in various materials
• Enhanced Durability – Rockwell C32 hardness maintains structural integrity through repeated use and vibration
• Industry-Standard Compliance – Meets ISO 4014/DIN 931 specifications for consistent quality and interchangeability
• Versatile Partial Threading – 30mm minimum thread length allows for precise clamping force control in structural applications
• Secure Drive System – External hex head design provides positive torque transmission and prevents stripping during installation

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these M12 hex head screws deliver critical performance where failure is not an option. The Class 10.9 steel construction combined with Rockwell C32 hardness provides exceptional resistance to shear forces and fatigue, making them ideal for heavy machinery, structural steel connections, and automotive assemblies. The blue-dyed zinc-plated finish offers superior corrosion protection in harsh environments, while the coarse 1.75mm pitch threading ensures rapid installation and reliable grip in both metal and composite materials. These partially threaded metric bolts are specifically designed to distribute clamping forces efficiently, preventing joint loosening in high-vibration settings common in construction equipment and industrial manufacturing.

Specification Summary & Compliance

Manufactured to precise ISO 4014 / DIN 931 standards with Class 6g thread tolerance for consistent dimensional accuracy. These metric hex head screws feature M12 x 1.75mm coarse threads with right-hand direction and partial threading (minimum 30mm thread length). Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. The external hex drive configuration and 19mm head width provide standardized tool compatibility for efficient installation.