S-91304A106 M3 x 25 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 strength rating and 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through blue-dyed zinc plating that provides both aesthetic appeal and enhanced environmental protection
• Optimized installation efficiency with 2mm hex drive design ensuring secure tool engagement and reduced stripping risk
• Precise flush mounting achieved through standard 90° flat head profile that sits perfectly countersunk in prepared surfaces
• Controlled thread engagement via partially threaded design that prevents over-tightening and maintains joint integrity
• Consistent performance in vibration environments with coarse M3 x 0.5mm right-hand threads providing secure fastening in various materials
• Industry-standard compatibility with Class 6g thread fit ensuring reliable interchangeability across metric applications

Professional Applications & Engineering Value

These M3 flat head screws deliver critical engineering solutions where high-strength fastening meets precision requirements. The blue-dyed zinc-plated alloy steel construction provides superior corrosion resistance while maintaining Rockwell C32 hardness for durability in industrial environments. The partially threaded design ensures controlled clamping force distribution, preventing material damage in delicate assemblies. With coarse thread spacing and 2mm hex drive, these screws offer rapid installation in machinery, automotive components, and electronic enclosures where vibration resistance and reliable flush mounting are essential. The combination of Class 10.9 strength and standardized metric dimensions makes these fasteners ideal for OEM applications requiring consistent performance across production runs.

Specification Summary & Compliance

Manufactured to precise metric dimensions with Class 6g thread tolerance ensuring consistent fit and performance. These screws conform to DIN 7991/ISO 10642 standards for flat head screw specifications, guaranteeing dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental regulations for industrial components. The 25mm length with 12mm minimum thread length provides optimal engagement depth for various material thicknesses while maintaining the specified 90° countersink angle for proper seating in prepared holes.