S-91294A551 M8 x 120 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 grade and 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through black-oxide surface treatment, extending service life in harsh industrial environments
• Precise flush mounting with 90° countersink angle and standard flat head profile for seamless integration and improved aesthetics
• Optimized installation efficiency with 5mm hex drive design providing secure tool engagement and reduced slippage risk
• Enhanced thread reliability through Class 6g thread fit and coarse 1.25mm pitch, ensuring consistent engagement and vibration resistance
• Full-length threading versatility offering maximum adjustment flexibility across the entire 120mm length
• Certified material safety with RoHS 3 and REACH compliance, meeting international environmental regulations

Professional Applications & Engineering Value

This M8 flat head screw delivers critical engineering advantages for industrial assembly applications where high tensile strength and corrosion resistance are paramount. The black-oxide alloy steel construction provides superior protection against environmental degradation while maintaining the Class 10.9 strength rating essential for structural applications. The combination of fully threaded metric design with coarse 1.25mm pitch ensures rapid installation and excellent vibration resistance in machinery, equipment frames, and automotive components. The 90° countersink angle and standard flat head profile enable flush mounting that eliminates protrusion hazards while maintaining aerodynamic surfaces. Engineered to DIN 7991/ISO 10642 specifications, these industrial screws provide reliable performance in heavy-duty applications where fastener failure is not an option.

Specification Summary & Compliance

This fastener features precision M8 x 1.25mm coarse pitch threading with Class 6g thread fit tolerance for consistent engagement. Manufactured to DIN 7991/ISO 10642 standards with complete regulatory compliance including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements. The Class 10.9 strength classification corresponds to minimum tensile strength of 120,000 psi with Rockwell C32 hardness rating, ensuring mechanical properties meet international engineering specifications for high-strength fasteners.