S-98093A781 M12 x 100 mm ASME B18.2.3.9M, SAE J1199 High-Strength Metric Class 10.9 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-phosphate steel coating, extending service life in harsh industrial environments
• Exceptional load-bearing capacity from Class 10.9 strength grade and 150,000 psi tensile strength for critical applications
• Enhanced installation efficiency with external hex drive and flanged design providing superior grip and eliminating washer requirements
• Reliable thread engagement through Class 6g thread fit and coarse 1.75mm pitch ensuring secure fastening in various materials
• Optimized weight distribution with partial threading and 30mm minimum thread length for balanced strength-to-weight ratio
• Consistent performance backed by Rockwell C32 hardness for maintained structural integrity under vibration and stress
• Broad compatibility with standard 18mm hex head and 26.6mm flange diameter for versatile tooling options

Professional Applications & Engineering Value

Engineered for demanding industrial scenarios, these M12 hex head screws deliver exceptional performance in heavy machinery, structural steel connections, and automotive assemblies. The black-phosphate steel construction provides superior corrosion protection where environmental factors threaten fastener integrity, while the Class 10.9 strength grade ensures reliable performance under extreme tensile loads. The flanged design eliminates the need for separate washers, reducing assembly time and potential failure points. With coarse threading and partial threading configuration, these screws offer optimal clamping force in both soft and hard materials, making them ideal for vibration-prone applications where maintaining preload is critical. The combination of external hex drive and standardized dimensions ensures compatibility with common industrial tools, streamlining maintenance and installation processes across various sectors.

Specification Summary & Compliance

This metric hex head screw features precise M12x1.75mm coarse threading with Class 6g thread fit tolerance, ensuring consistent engagement across applications. Manufactured to ASME B18.2.3M specifications for dimensional accuracy and performance reliability. The product maintains full compliance with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, meeting the latest industry standards for environmental responsibility and workplace safety.