S-91306A678 M8 x 20 mm ISO 7380 Steel Button Head Hex-Drive Screws
Steel Button Head Hex-Drive 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 corrosion resistance thanks to zinc-plated alloy steel construction, ensuring long-term reliability in harsh industrial environments
- Superior tensile strength of 140,000 psi with Class 10.9 rating, providing reliable performance under high-stress applications
- Precise hex drive engagement with 5mm drive size for secure installation and reduced tool slippage during assembly
- Full threading design ensures maximum grip and load distribution across the entire fastener length
- Standardized coarse thread pitch (1.25mm) enables faster installation and reduced cross-threading risks
- Rounded button head profile offers a low-profile, aesthetically clean finish while minimizing snagging hazards
- Compliance with international standards including ISO 7380, RoHS 3, and REACH for guaranteed quality and environmental safety
Professional Applications & Engineering Value
These M8 metric screws with Class 10.9 strength and zinc-plated alloy steel construction are engineered to address critical industrial fastening challenges. The fully threaded coarse pitch design ensures rapid assembly in machinery, automotive components, and structural frameworks where vibration resistance and durability are paramount. The hex drive style provides superior torque transmission, preventing stripping during high-tension applications. With Rockwell C32 hardness and corrosion-resistant zinc plating, these rounded head screws maintain integrity in exposed or humid environments, reducing maintenance cycles and replacement costs while complying with rigorous ISO 7380 standards for consistent performance.
Specification Summary & Compliance
This fastener features M8 x 1.25mm coarse threads with Class 6g tolerance for precise fit, 20mm length, and fully threaded design. Manufacturing complies with ISO 7380 specifications for dimensional accuracy and mechanical properties. Regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use in global industrial supply chains.
