S-91280A899 M20 x 160 mm ISO 4014, DIN 931, SAE J1199, ISO 898 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 load-bearing capacity with Class 8.8 strength grade and 110,000 psi tensile strength for reliable performance in demanding applications
- Enhanced corrosion resistance through zinc plating, extending service life in harsh industrial environments
- Optimized thread engagement with coarse M20x2.5mm threads and partial threading for secure fastening and reduced installation time
- Precise torque application enabled by external hex drive and 30mm head width for secure tool engagement and consistent clamping force
- Exceptional durability with Rockwell C21 hardness steel construction resisting deformation under heavy loads
- Global compatibility meeting ISO 4014, DIN 931, and SAE J1199 standards for interchangeable use across international projects
- Environmental compliance with RoHS 3 and REACH regulations ensuring safe use in regulated industries
Professional Applications & Engineering Value
This M20 hex head screw delivers critical engineering solutions for industrial fastening applications where vibration resistance and structural integrity are paramount. The Class 8.8 steel construction provides reliable strength for heavy machinery, structural steel connections, and equipment assembly, while the zinc plated finish protects against corrosion in manufacturing environments. The partially threaded design with coarse metric threads ensures optimal stress distribution and prevents loosening in high-vibration settings. With precise Class 6h thread fit and external hex drive, installers achieve consistent torque values in construction, automotive, and industrial maintenance applications where high tensile strength and standardized dimensions are essential for project compliance and safety.
Specification Summary & Compliance
This fastener maintains Class 6h thread fit tolerance with M20x2.5mm coarse threads and 46mm minimum thread length. Manufacturing complies with ISO 4014, DIN 931, and SAE J1199 specifications for dimensional accuracy and mechanical properties. The product is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental regulations for industrial components.
