S-91310A548 M8 x 55 mm ISO 4014, DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws
High-Strength Metric Class 10.9 Steel Hex Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional tensile strength of 150,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Class 10.9 strength grade provides superior durability and load-bearing capacity for demanding industrial environments.
- Rockwell C32 hardness offers excellent resistance to wear and deformation, extending service life in rigorous conditions.
- Partially threaded M8 design with coarse 1.25 mm pitch allows for faster installation and secure gripping in various materials.
- External hex drive and 13 mm head width enable easy tightening with standard tools, improving assembly efficiency.
- ISO 4014/DIN 931 compliance guarantees dimensional accuracy and interchangeability, ensuring consistent quality across projects.
- RoHS 3 and REACH compliance confirms environmental safety and regulatory adherence for global supply chain requirements.
Professional Applications & Engineering Value
This M8 hex head screw with Class 10.9 steel construction is engineered to address critical challenges in heavy machinery, automotive assemblies, and structural frameworks where vibration resistance and high clamp load are essential. The partially threaded configuration with coarse metric thread ensures rapid installation and robust holding power, minimizing loosening under dynamic loads. With a Rockwell C32 hardness and precise external hex drive, it withstands repetitive stress and corrosion in industrial settings, reducing maintenance downtime. Ideal for demanding applications requiring reliable fastening solutions, this screw delivers consistent performance while meeting international ISO 4014 standards for safety and efficiency.
Specification Summary & Compliance
This fastener adheres to Class 6g thread fit for precise metric tolerances, with a minimum thread length of 22 mm and overall length of 55 mm. It conforms to ISO 4014 and DIN 931 specifications for dimensional accuracy and manufacturing consistency. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures it meets environmental and safety regulations, supporting sustainable industrial practices.
