S-91280A283 M8 x 65 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
- High tensile strength of 110,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
- Class 8.8 strength grade provides excellent durability and load-bearing capacity for industrial and construction uses.
- Rockwell C21 hardness offers superior resistance to wear and deformation, extending service life.
- Class 6g thread fit guarantees precise engagement and easy installation, minimizing assembly time and errors.
- Coarse metric thread (M8 x 1.25 mm) allows for quick fastening and better performance in materials prone to vibration or thermal expansion.
- Partially threaded design enables secure clamping over a 22 mm minimum thread length, ideal for varied material thicknesses.
- External hex head with 13 mm width facilitates straightforward tool access and high torque application, improving installation efficiency.
Professional Applications & Engineering Value
Engineered for robustness, this M8 hex head screw in Class 8.8 steel addresses critical industrial challenges such as vibration loosening and high-stress fatigue. The coarse thread (1.25 mm pitch) ensures rapid assembly and reliable hold in softer materials or environments with dynamic loads, reducing maintenance needs. With a black finish and compliance to ISO 4014/DIN 931, it excels in machinery, automotive, and structural applications where precision and high tensile strength are paramount. The partially threaded configuration allows for optimal grip in assemblies with non-uniform thickness, enhancing versatility and engineering efficiency in B2B settings.
Specification Summary & Compliance
This fastener features a Class 6g thread fit per metric standards, ensuring dimensional accuracy and interchangeability. It adheres to ISO 4014/DIN 931 manufacturing specifications for consistent quality and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for global industrial use.
