S-98093A751 M12 x 30 mm ASME B18.2.3.9M, SAE J1199 High-Strength Metric Class 10.9 Steel Flanged Hex Head Screws
High-Strength Metric Class 10.9 Steel Flanged 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 corrosion resistance due to black-phosphate steel coating, extending service life in harsh industrial environments
- Exceptional load-bearing capacity with Class 10.9 strength grade and 150,000 psi tensile strength for heavy-duty applications
- Reliable thread engagement with fully threaded M12 coarse pitch (1.75mm) design for faster assembly and secure fastening
- Enhanced torque transmission through external hex drive and flanged design, preventing loosening under vibration
- Precision manufacturing with Class 6g thread fit ensuring consistent performance and interchangeability
- Regulatory compliance meeting ASME B18.2.3.9M, RoHS 3, and REACH standards for global industrial use
- Optimized hardness at Rockwell C32 providing excellent wear resistance without brittleness
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these M12 hex head screws deliver critical performance where vibration resistance and corrosion protection are paramount. The black-phosphate steel construction creates a protective barrier against moisture and chemicals, making them ideal for automotive assemblies, heavy machinery, and structural applications. The fully threaded coarse pitch design ensures rapid installation and superior holding power in steel-to-steel connections, while the flanged head distributes clamping force evenly, eliminating the need for separate washers. With Class 10.9 strength rating and external hex drive, these metric screws withstand extreme tensile loads and provide reliable torque transfer in high-stress applications where fastener failure is not an option.
Specification Summary & Compliance
This metric hex head screw features M12 x 1.75mm coarse threads with Class 6g tolerance for precision fit. Manufactured to ASME B18.2.3.9M specifications with fully threaded design and 30mm length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across global industrial markets. The fastener maintains Rockwell C32 hardness and meets all dimensional requirements for consistent performance in professional applications.
