S-91280A352 M6 x 70 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

• Exceptional durability with Class 8.8 strength grade and 110,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance provided by zinc plating, extending service life in harsh industrial environments
• Optimized thread engagement with coarse 1 mm pitch and Class 6h thread fit ensuring secure fastening and vibration resistance
• Easy installation and removal through external hex drive design compatible with standard tools
• Versatile partial threading allowing precise clamping force control across various material thicknesses
• International compliance meeting ISO 4014, DIN 931, and SAE J1199 standards for global project compatibility
• Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing practices

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these M6 hex head screws deliver critical performance where fastener failure is not an option. The Class 8.8 steel construction with Rockwell C21 hardness provides exceptional resistance to shear and tensile stresses in machinery assembly, structural frameworks, and heavy equipment. The coarse metric thread with 1 mm pitch ensures rapid installation and superior holding power in both metallic and composite materials. Zinc plating offers essential corrosion protection for outdoor applications or environments with moisture exposure. The partially threaded design allows precise load distribution, preventing joint loosening under vibration while maintaining clamping force integrity. These ISO 4014 compliant fasteners are specifically designed to address common industrial challenges including thermal cycling, dynamic loads, and long-term structural stability requirements.

Specification Summary & Compliance

This metric hex head screw features precise M6 x 1 mm coarse threading with Class 6h thread fit tolerance ensuring consistent engagement. Manufacturing complies with ISO 4014, DIN 931, and SAE J1199 specifications for dimensional accuracy and mechanical properties. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. With a minimum thread length of 18 mm and total length of 70 mm, these screws maintain Class 8.8 strength classification throughout their specified dimensions.