S-91294A378 M12 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 rating and 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through black-oxide coating on alloy steel, extending service life in harsh industrial environments
• Precision thread engagement with M12 coarse thread and Class 6g fit ensuring secure fastening and vibration resistance
• Optimized installation efficiency featuring 8mm hex drive and standard flat head profile for quick assembly and flush mounting
• Full-thread design advantage providing consistent clamping force along the entire 120mm length for maximum joint integrity
• Enhanced durability with Rockwell C32 hardness maintaining structural integrity under repeated stress cycles
• Regulatory compliance assurance meeting DIN 7991/ISO 10642 standards with RoHS 3 and REACH environmental directives

Professional Applications & Engineering Value

This M12 flat head screw delivers critical engineering solutions for heavy-duty industrial applications where structural integrity 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 high-stress connections. The coarse thread metric design with 1.75mm pitch ensures rapid installation and reliable performance in vibration-prone environments, from machinery assembly to structural steel frameworks. The combination of fully threaded configuration and precise 90° countersink angle enables flush mounting in critical applications where surface clearance is limited, while the 8mm hex drive facilitates efficient torque application without slippage concerns.

Specification Summary & Compliance

Manufactured to exacting DIN 7991/ISO 10642 specifications, this fastener features precision Class 6g thread fit tolerance for consistent engagement. The metric coarse thread (M12 x 1.75mm) with right-hand threading ensures compatibility with standard industrial components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees safe usage across regulated industries. The 120mm length with complete threading provides uniform stress distribution, while the Rockwell C32 hardness maintains dimensional stability under operational loads.