S-94414A721 M4 x 6 mm ASME B18.3.5M Alloy Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 12.9 strength grade and 140,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance provided by black-oxide coating on alloy steel, extending service life in harsh industrial environments
• Enhanced torque transmission through Torx Plus IP20 drive system, reducing cam-out risk and tool wear during installation
• Precision threading with Class 4g6g fit and M4 x 0.7mm coarse pitch for secure fastening and vibration resistance
• Optimized flush mounting with standard 90° flat head profile for smooth surface finishes in precision assemblies
• Full compliance assurance meeting ASME B18.3.5M standards and environmental regulations including RoHS 3 and REACH
• Consistent performance backed by Rockwell C38 hardness rating and fully threaded design for maximum grip length

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these M4 flat head screws deliver critical performance advantages where reliability is non-negotiable. The black-oxide alloy steel construction provides superior protection against corrosion while maintaining the Class 12.9 strength rating required for high-stress environments. The Torx Plus IP20 drive system addresses common installation challenges by preventing cam-out and enabling higher torque application compared to conventional drives. With fully threaded metric coarse pitch design and precise Class 4g6g thread fit, these fasteners ensure secure connections in machinery, automotive components, and precision equipment where vibration resistance and consistent clamping force are essential. The 90° countersink angle and flat head profile facilitate flush mounting in critical applications requiring aerodynamic surfaces or smooth finishes.

Specification Summary & Compliance

This metric fastener features precise M4 x 0.7mm coarse thread with Class 4g6g thread fit according to ISO standards, ensuring dimensional accuracy and compatibility. Manufacturing complies with ASME B18.3.5M specification for consistent quality and performance. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations for environmental safety. With 6mm length and fully threaded design, these screws deliver maximum engagement strength while maintaining the Class 12.9 strength classification and Rockwell C38 hardness for reliable performance in industrial fastening applications.