S-91263A911 M8 x 10 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional durability and corrosion resistance with zinc-plated alloy steel construction, ensuring long-lasting performance in harsh industrial environments.
• Superior load-bearing capacity thanks to Class 10.9 strength grade and 120,000 psi tensile strength, preventing failure under high-stress conditions.
• Reliable thread engagement and vibration resistance with coarse M8 x 1.25mm threads and Class 6g fit, minimizing loosening in dynamic applications.
• Efficient installation and flush mounting featuring a standard 90° countersink angle and 5mm hex drive for secure, tool-compatible fastening.
• Consistent quality and dimensional accuracy compliant with DIN 7991 standards, ensuring precise fit and interchangeability in metric assemblies.
• Enhanced safety and environmental compliance meeting RoHS 3 and REACH regulations, supporting sustainable and safe manufacturing practices.
• Versatile full-thread design providing maximum grip and holding power across the entire fastener length for robust connections.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these M8 flat head screws deliver critical reliability in machinery, construction, and automotive assemblies. The zinc-plated alloy steel material combats corrosion, extending service life in exposed or high-moisture environments. With a coarse thread pitch of 1.25mm and Class 6g thread fit, they offer superior resistance to vibration loosening, a common failure point in heavy-duty equipment. The 90° countersink angle and flat head design enable seamless, flush installations, reducing protrusion risks and improving aerodynamic or aesthetic profiles. By integrating high tensile strength (120,000 psi) and Rockwell C32 hardness, these screws withstand extreme loads and repetitive stress, making them ideal for structural frameworks, engine components, and precision industrial tools where failure is not an option.

Specification Summary & Compliance

This fastener adheres to precise metric dimensions, including M8 thread size, 1.25mm coarse pitch, and Class 6g thread tolerance for consistent performance. It meets DIN 7991 manufacturing specifications, ensuring dimensional accuracy and reliability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms the product is free from hazardous substances, supporting global environmental and safety standards in B2B procurement.