S-91280A188 M12 x 210 mm ISO 4014, DIN 931 Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior tensile strength with 110,000 psi rating ensures reliable load-bearing capacity in demanding industrial environments.
- Enhanced corrosion resistance from zinc plating extends service life and reduces maintenance costs in harsh conditions.
- Class 8.8 strength grade provides consistent mechanical performance for structural and heavy-duty applications.
- Coarse M12 x 1.75mm thread offers faster assembly and improved vibration resistance compared to fine-pitch alternatives.
- External hex drive design allows for high-torque installation using standard tools, increasing installation efficiency.
- Partial threading optimizes grip length for better clamping force distribution in thick materials.
- Rockwell C21 hardness maintains thread integrity and prevents stripping during repeated use.
Professional Applications & Engineering Value
This M12 hex head screw delivers critical engineering solutions where high tensile strength and corrosion resistance are paramount. Manufactured from Class 8.8 steel with zinc plating, it effectively combats environmental degradation in outdoor construction, machinery assembly, and structural frameworks. The coarse metric thread (M12 x 1.75mm) ensures rapid installation and superior resistance to loosening under vibration, while the partial threading design provides optimal stress distribution when fastening thick plates or components. Meeting ISO 4014 specifications, this fastener eliminates compatibility concerns in global projects, making it ideal for industrial equipment, infrastructure, and heavy machinery applications requiring reliable, long-term performance.
Specification Summary & Compliance
This hex head screw features precise Class 6h thread fit according to ISO 4014 (equivalent to DIN 931) standards, ensuring dimensional accuracy and interchangeability. The M12 coarse thread with 1.75mm pitch and 49mm minimum thread length maintains consistent engagement, while the 210mm overall length accommodates various material thicknesses. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and restricted substance compliance for global industrial use.
