S-91310A956 M20 x 80 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
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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 tensile strength of 150,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Class 10.9 strength grade provides superior load-bearing capacity, ideal for heavy-duty machinery and construction projects.
- Rockwell C32 hardness offers excellent wear resistance and durability, extending the service life in demanding environments.
- Coarse 2.5mm thread pitch enables quick installation and secure holding power, minimizing assembly time and vibration loosening.
- Partially threaded design allows for precise clamping force control, making it suitable for applications where unthreaded shank strength is critical.
- Class 6g thread fit ensures consistent and accurate mating with nuts, promoting smooth assembly and reducing the chance of cross-threading.
- External hex drive and hex head facilitate easy tightening with standard tools, enhancing installation efficiency in confined spaces.
Professional Applications & Engineering Value
This M20 hex head screw is engineered from high-grade steel with a Class 10.9 rating, addressing common industrial challenges such as joint integrity under heavy loads and vibration-induced loosening. The coarse metric thread with a 2.5mm pitch provides superior grip in materials like metal and hardened plastics, while the partially threaded shank design concentrates stress away from the thread roots, reducing the risk of shear failure. Ideal for construction and machinery applications, this external hex drive fastener ensures quick, tool-friendly installation, saving time in assembly lines and maintenance operations. Compliance with ISO 4014 DIN 931 standards guarantees dimensional accuracy and interoperability, making it a trusted choice for engineers seeking durability and performance in harsh environments.
Specification Summary & Compliance
This product adheres to precise dimensional tolerances, including a Class 6g thread fit per metric standards and specifications meeting ISO 4014 DIN 931. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring environmental safety and regulatory alignment for global industrial use.
