S-91294A578 M8 x 110 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 high-stress applications
• Superior corrosion resistance through black-oxide surface treatment, extending service life in demanding industrial environments
• Precise installation control with 5mm hex drive design that prevents stripping and ensures consistent torque application
• Optimized thread engagement through Class 6g thread fit and coarse 1.25mm pitch for faster assembly and reduced cross-threading risks
• Full-length threading provides maximum grip along the entire 110mm shaft for enhanced fastening security
• Industry-standard compliance with DIN 7991/ISO 10642 specifications ensures interchangeability and quality assurance
• Environmental responsibility through RoHS 3 and REACH compliance, meeting strict regulatory requirements

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these M8 flat head screws deliver exceptional performance where high-strength fastening is critical. The black-oxide alloy steel construction provides superior corrosion resistance while maintaining the Class 10.9 strength rating essential for structural components, machinery assembly, and heavy equipment. The fully threaded design with coarse 1.25mm pitch ensures rapid installation and maximum holding power across the entire 110mm length. The 5mm hex drive configuration prevents cam-out during high-torque applications, while the flat head profile creates flush surfaces ideal for applications requiring smooth finishes. These screws are particularly valuable in automotive, construction, and manufacturing sectors where reliable metric fasteners must withstand vibration, dynamic loads, and harsh environmental conditions.

Specification Summary & Compliance

This metric flat head screw features precise Class 6g thread fit tolerance with M8 x 1.25mm coarse threading and right-hand thread direction. Manufactured to DIN 7991/ISO 10642 standards with fully threaded 110mm length and 90° countersink angle. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring environmental responsibility while delivering Rockwell C32 hardness and 120,000 psi tensile strength performance characteristics.