S-91290A257 M12 x 300 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws
Alloy Steel Socket 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 170,000 PSI from Class 12.9 alloy steel ensures reliable performance in high-stress industrial applications.
- Superior corrosion resistance provided by the black-oxide coating extends service life in harsh environments.
- High hardness rating of Rockwell C37 minimizes wear and deformation under heavy loads.
- Precise hex drive design with 10mm drive size allows for secure tool engagement and efficient installation.
- Optimized thread design with coarse pitch (1.75mm) and Class 5g6g fit enables quick assembly and vibration resistance.
- Partially threaded shank offers flexibility for applications requiring both clamped and unthreaded sections.
- Full compliance with international standards including DIN 912/ISO 4762 ensures interchangeability and quality assurance.
Professional Applications & Engineering Value
This M12 socket head cap screw is engineered for demanding industrial settings where failure is not an option. The Class 12.9 alloy steel construction delivers unmatched tensile strength, making it ideal for heavy machinery, automotive assemblies, and structural frameworks that undergo constant stress. The black-oxide surface treatment provides a durable barrier against moisture and chemicals, reducing maintenance needs in corrosive environments. With its coarse metric thread and partially threaded rod, it ensures rapid installation and secure clamping in dynamic applications, minimizing loosening from vibrations. This fastener solves critical engineering challenges by combining high load-bearing capacity with long-term reliability, supporting efficient production and safety in industrial fastening systems.
Specification Summary & Compliance
This product features precise metric coarse threads with M12 x 1.75mm dimensions and a Class 5g6g thread fit for consistent engagement. It adheres to DIN 912/ISO 4762 manufacturing standards, ensuring dimensional accuracy and performance reliability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms its environmental safety and suitability for global industrial use.
