S-91263A918 M8 x 50 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Maximum load-bearing capability with Class 10.9 strength rating and 120,000 psi tensile strength for critical structural applications
• Superior corrosion resistance through zinc-plated alloy steel construction, extending service life in harsh industrial environments
• Precision thread engagement with M8 x 1.25mm coarse pitch and Class 6g thread fit ensuring reliable, vibration-resistant fastening
• Streamlined installation featuring standard 90° countersink angle and 5mm hex drive for flush mounting and efficient assembly
• Full-threaded design providing consistent clamping force along the entire 50mm length for maximum joint integrity
• Enhanced durability with Rockwell C32 hardness maintaining thread integrity through repeated installation cycles
• Regulatory compliance meeting DIN 7991 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these M8 flat head screws deliver exceptional performance in machinery assembly, structural frameworks, and heavy equipment manufacturing. The zinc-plated alloy steel construction provides essential corrosion protection while maintaining the Class 10.9 strength rating required for high-stress connections. The fully threaded metric design with 1.25mm coarse pitch ensures rapid installation and superior vibration resistance, addressing common loosening issues in dynamic environments. The standard 90° countersink angle and hex drive style facilitate flush mounting in precision applications, making these DIN 7991 compliant fasteners ideal for automotive, construction, and industrial machinery where reliability and regulatory compliance are paramount.

Specification Summary & Compliance

This metric flat head screw features precise M8 x 1.25mm coarse threading with Class 6g thread fit tolerance ensuring compatibility with standard metric components. Manufactured to DIN 7991 specifications with complete RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) adherence, meeting the latest environmental regulations for industrial fasteners. The 50mm length and fully threaded design maintain dimensional accuracy throughout production, while the Class 10.9 strength classification and Rockwell C32 hardness verify consistent mechanical performance across all batches.