S-91280A546 M8 x 50 mm ISO 4017, DIN 933, 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
- Exceptional tensile strength with 110,000 psi rating ensures reliable performance in demanding applications
- Superior corrosion resistance through zinc plating extends service life in harsh industrial environments
- Precision Class 6h thread fit guarantees consistent engagement and vibration resistance
- Full threading design provides maximum grip length and uniform load distribution
- External hex drive compatibility allows for standard tooling and efficient installation
- Rockwell C21 hardness maintains structural integrity under repeated stress cycles
- Comprehensive standards compliance ensures interchangeability and global acceptance
Professional Applications & Engineering Value
Engineered for industrial machinery assembly and structural applications, these M8 hex head screws deliver critical reliability where fastener failure is not an option. The Class 8.8 steel construction provides the optimal balance between strength and ductility, while the zinc plating creates a protective barrier against oxidation in manufacturing environments. The coarse thread pitch (1.25 mm) ensures rapid installation and superior resistance to vibration loosening, making these metric screws ideal for automotive components, equipment frames, and heavy-duty assemblies requiring high-strength fastening solutions that maintain integrity under dynamic loads.
Specification Summary & Compliance
Manufactured to precise Class 6h thread tolerance with ISO 4017/DIN 933 specifications for dimensional accuracy. These fully threaded fasteners meet SAE J1199 engineering standards and demonstrate full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 50 mm length and M8 x 1.25 mm coarse thread configuration ensures compatibility with standard industrial components while maintaining the mechanical properties specified in ISO 898 for Class 8.8 strength grade fasteners.
