S-91180A743 M12 x 20 mm ISO 8676, DIN 961 Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Medium-Strength Metric Class 8.8 Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with zinc plating, extending service life in harsh industrial environments
- High tensile strength of 110,000 psi ensures reliable performance in heavy-duty and high-stress applications
- Precise Class 6h thread fit provides secure, vibration-resistant connections with minimal risk of loosening
- Fine 1.5mm thread pitch delivers enhanced clamping force and superior holding power compared to coarse threads
- Fully threaded design allows for maximum grip length and uniform stress distribution along the entire fastener
- Class 8.8 strength grade offers excellent durability and reliability for demanding mechanical assemblies
- External hex head design enables easy installation and removal with standard tools, reducing assembly time
Professional Applications & Engineering Value
These M12 hex head screws are engineered to solve critical fastening challenges in industrial settings where vibration, heavy loads, and environmental factors compromise joint integrity. The Class 8.8 steel construction provides exceptional strength-to-weight ratio, making them ideal for structural applications in machinery, automotive assemblies, and construction equipment. The fine metric thread with 1.5mm pitch creates more thread engagement per unit length, significantly improving resistance to loosening under dynamic loads. Combined with zinc plating for corrosion protection, these fasteners maintain performance in outdoor or chemically aggressive environments. The external hex drive ensures high torque transmission during installation, preventing stripping and ensuring consistent clamping force in high-volume production environments.
Specification Summary & Compliance
This M12 x 1.5mm x 20mm hex head screw features precision Class 6h thread fit according to metric standards, ensuring dimensional accuracy and interchangeability. Manufacturing complies with ISO 8676 specification (DIN 961) for consistent quality and performance. The fastener meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) standards for chemical safety, making them suitable for global industrial applications with strict regulatory requirements.
