S-91239A418 M8 x 16 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
- Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
- Exceptional load-bearing capacity with Class 10.9 strength grade and 140,000 psi tensile strength for high-stress applications
- Optimized installation efficiency through 5mm hex drive design providing secure torque transmission and reduced slippage
- Reliable thread engagement with fully threaded M8 coarse pitch (1.25mm) and Class 6g fit ensuring consistent fastening performance
- Enhanced durability from Rockwell C32 hardness maintaining structural integrity under repeated stress cycles
- Streamlined profile with rounded button head design minimizing protrusion while maintaining clamping force distribution
- Global compliance assurance meeting ISO 7380 specifications and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
This M8 metric screw with black-oxide alloy steel construction addresses critical industrial fastening challenges where corrosion resistance and high tensile strength are paramount. The fully threaded design with coarse 1.25mm pitch ensures rapid installation and reliable holding power in vibration-prone applications such as heavy machinery, automotive assemblies, and structural frameworks. The rounded button head profile combined with hex drive configuration provides flush mounting capabilities while enabling high-torque installation without damaging the fastener head. Engineered to Class 10.9 standards, this ISO 7380 compliant screw maintains dimensional stability under extreme loads, making it ideal for precision engineering applications requiring consistent performance across production cycles.
Specification Summary & Compliance
Manufactured to ISO 7380 standards with Class 6g thread fit tolerance and coarse thread spacing. The fastener demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Dimensional specifications include M8 thread size, 1.25mm pitch, 16mm length, and 5mm hex drive size, ensuring interchangeability and consistent performance in metric-based industrial systems.
