S-91280A770 M12 x 100 mm ISO 4017, DIN 933, 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
- Exceptional load-bearing capacity with Class 8.8 strength rating and 110,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance due to zinc plating, extending service life in harsh industrial environments
- Optimized torque transmission with external hex drive and 19mm head width for secure installation and removal
- Enhanced thread engagement with M12 coarse thread (1.75mm pitch) ensuring faster assembly and reduced cross-threading risks
- Precision manufacturing to Class 6h thread fit and ISO 4017/DIN 933 standards for consistent dimensional accuracy
- Full-threaded design providing maximum grip length and uniform stress distribution across the entire fastener
- Regulatory compliance with RoHS 3 and REACH standards for environmentally responsible sourcing and usage
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these M12 hex head screws deliver reliable fastening solutions where vibration resistance and structural integrity are critical. The Class 8.8 steel construction with Rockwell C21 hardness provides exceptional resistance to shear and tensile forces, making them ideal for machinery assembly, structural frameworks, and equipment manufacturing. The zinc-plated finish offers superior protection against corrosion in challenging environments, while the metric coarse threading ensures quick installation and maintains clamping force under dynamic loads. These fully threaded fasteners with external hex drive design enable efficient torque application, reducing assembly time and improving maintenance accessibility in confined spaces.
Specification Summary & Compliance
Manufactured to precise ISO 4017/DIN 933 standards with Class 6h thread fit tolerance for dimensional consistency. The metric coarse thread (M12 x 1.75mm) provides optimal performance in most industrial applications. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across various sectors. Meets ISO 898 mechanical properties requirements for Class 8.8 strength grade fasteners.
