S-91280A284 M8 x 70 mm ISO 4014, DIN 931 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 grade and 110,000 psi tensile strength for reliable performance in demanding applications
- Enhanced durability and corrosion resistance thanks to high-quality steel construction and black finish
- Easy installation and removal with external hex head design providing secure tool engagement
- Optimized thread engagement through coarse 1.25mm pitch and Class 6g thread fit ensuring secure fastening
- Versatile partial threading allowing for both clamping and alignment functions in assembly operations
- International compliance assurance meeting ISO 4014/DIN 931 standards for global project compatibility
- Environmental regulation compliance with RoHS 3 and REACH adherence for responsible manufacturing
Professional Applications & Engineering Value
This M8 hex head screw delivers exceptional engineering value through its Class 8.8 steel construction and precision metric threading. The partially threaded design with coarse 1.25mm pitch provides optimal stress distribution while allowing for both clamping and alignment functions in industrial assemblies. The external hex drive ensures maximum torque transmission without stripping, making it ideal for high-vibration environments. With Rockwell C21 hardness and 110,000 psi tensile strength, this fastener solves critical challenges in machinery, equipment manufacturing, and structural applications where reliable fastening under load is paramount. The black finish adds an extra layer of corrosion protection for extended service life in demanding conditions.
Specification Summary & Compliance
This M8 x 1.25 x 70mm hex head screw features precise Class 6g thread fit tolerance with 22mm minimum thread length and right-hand threading. Manufactured to ISO 4014/DIN 931 specifications with Class 8.8 strength grade certification. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors.
