S-90373A102 M8 x 20 mm ISO 4017, DIN 933 Extreme-Strength Metric Class12.9 Steel Hex Head Screws
Extreme-Strength Metric Class12.9 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
- Maximum load-bearing capacity with Class 12.9 steel construction providing 170,000 psi tensile strength for critical structural applications
- Superior wear resistance due to Rockwell C39 hardness, ensuring long service life under repetitive stress
- Quick installation and removal with standard 13mm external hex drive compatible with common industrial tools
- Reliable thread engagement through full M8×1.25 coarse threading that resists vibration loosening
- Precise dimensional consistency maintained through ISO 4017/DIN 933 manufacturing standards
- Environmental compliance assurance with RoHS 3 and REACH regulations for global industrial applications
- Optimized 20mm length providing versatile fastening solutions for medium-thickness assemblies
Professional Applications & Engineering Value
These high-strength Class 12.9 hex head screws deliver exceptional performance in demanding industrial environments where failure is not an option. The fully threaded M8 design with 1.25mm coarse pitch ensures maximum thread contact in tapped holes, providing superior resistance to vibrational loosening in machinery, automotive assemblies, and heavy equipment. The external hex drive allows for high-torque installation with standard tools, while the steel construction with Rockwell C39 hardness maintains structural integrity under extreme loads. Engineered to ISO 4017/DIN 933 standards, these metric screws offer reliable dimensional accuracy for precision manufacturing applications where consistent fastener performance is critical to operational safety and equipment longevity.
Specification Summary & Compliance
This M8×1.25×20mm hex head screw features Class 6g thread tolerance for precise fitment and fully threaded coarse pitch design per metric standards. Manufactured to ISO 4017/DIN 933 specifications with Class 12.9 strength rating (170,000 psi tensile strength). Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use worldwide.
