S-91263A422 M2.5 x 6 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with Class 12.9 rating and 170,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance provided by zinc-plated alloy steel construction, extending service life in harsh environments
• Precise hex drive engagement with 1.5mm drive size ensuring secure installation and preventing tool slippage
• Optimized thread design with coarse spacing and Class 5g6g fit for quick assembly and vibration resistance
• Flush mounting capability with standard 90° countersink angle for smooth surface finishes and aerodynamic profiles
• Full thread coverage along the 6mm length maximizes grip strength and load distribution
• Regulatory compliance assurance meeting DIN 7991, RoHS 3, and REACH standards for global market acceptance

Professional Applications & Engineering Value

These M2.5 flat head screws deliver critical engineering solutions where space constraints and high-stress conditions coexist. The zinc-plated alloy steel construction provides essential corrosion protection for industrial equipment, automotive assemblies, and electronic enclosures exposed to environmental challenges. With Class 12.9 strength classification and 170,000 psi tensile strength, these metric fasteners maintain joint integrity under extreme vibrational loads and thermal cycling. The hex drive design ensures positive torque transmission during installation, while the fully threaded configuration and coarse thread spacing enable rapid assembly in production environments. The 90° countersink angle creates seamless surface transitions in precision machinery, making these heavy-duty fasteners ideal for applications demanding both structural reliability and aesthetic finish.

Specification Summary & Compliance

This M2.5 x 0.45mm pitch metric screw features precise Class 5g6g thread fit tolerance according to ISO standards, ensuring consistent engagement and reliable performance. Manufacturing specifications strictly adhere to DIN 7991 requirements for dimensional accuracy and mechanical properties. The product demonstrates full compliance with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety. With Rockwell C39 hardness and fully threaded construction across the 6mm length, these screws maintain dimensional stability and load-bearing capacity across diverse industrial applications.