S-91280A224 M5 x 12 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
- Superior load-bearing capacity with Class 8.8 strength rating and 110,000 psi tensile strength for reliable performance in demanding applications
- Enhanced corrosion resistance through zinc plating, extending service life in industrial environments
- Optimal hardness and durability with Rockwell C21 rating, resisting wear and deformation under stress
- Secure and efficient installation using standard external hex drive tools for quick assembly and disassembly
- Precise thread engagement with Class 6h fit and coarse pitch (M5x0.8mm), reducing cross-threading risks
- Full thread coverage along the 12mm length, ensuring maximum grip and uniform stress distribution
- Compliance with international standards including ISO 4017/DIN 933, guaranteeing interchangeability and quality
Professional Applications & Engineering Value
This M5 hex head screw delivers exceptional engineering value in industrial settings where vibration resistance and structural integrity are critical. The Class 8.8 steel construction provides high tensile strength, preventing failure under dynamic loads in machinery, automotive assemblies, and construction frameworks. Its coarse metric thread design (M5x0.8mm) ensures rapid installation and reliable holding power in materials like steel and aluminum, while the zinc plated finish combats rust in humid or outdoor environments. Fully threaded for consistent clamping force, it solves common issues like loosening and fatigue, making it ideal for high-strength fastening in manufacturing, equipment maintenance, and structural applications where precision and durability are non-negotiable.
Specification Summary & Compliance
This fastener adheres to precise dimensional tolerances with Class 6h thread fit and coarse thread spacing per ISO metric standards. It conforms to ISO 4017 and DIN 933 specifications for hex head screws, ensuring dimensional accuracy and performance reliability. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial use without hazardous substances.
