S-91263A843 M8 x 16 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance through zinc-plated alloy steel construction, ensuring long-term reliability in harsh industrial environments
• Superior load-bearing capacity with Class 10.9 strength rating and 120,000 psi tensile strength for critical structural applications
• Precision installation and torque control with 5mm hex drive design, preventing stripping and ensuring secure fastening
• Optimized flush mounting thanks to standard flat head profile with 90° countersink angle for seamless surface integration
• Reliable coarse thread engagement with M8x1.25mm metric threading and Class 6g fit, providing vibration resistance in dynamic applications
• Full-length thread coverage across the 16mm length ensures maximum grip strength and uniform stress distribution
• Certified material safety with RoHS 3 and REACH compliance, meeting international environmental and health standards

Professional Applications & Engineering Value

These M8 flat head screws deliver critical engineering solutions where surface flushness combines with high-strength requirements. The zinc-plated alloy steel construction provides essential corrosion protection for machinery, automotive components, and outdoor equipment exposed to moisture and chemicals. With Rockwell C32 hardness and Class 10.9 strength rating, these fasteners maintain integrity under extreme vibration and dynamic loads common in manufacturing equipment and structural assemblies. The fully threaded design with coarse metric threading ensures rapid installation and superior holding power in both soft and hard materials, while the 90° countersink angle creates seamless transitions in precision-machined surfaces. Engineered to DIN 7991/ISO 10642 standards, these screws provide reliable performance in demanding industrial applications where failure is not an option.

Specification Summary & Compliance

This metric flat head screw features M8x1.25mm coarse threading with Class 6g thread fit tolerance ensuring precise engagement. Manufactured to DIN 7991/ISO 10642 specifications with complete RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance. The fastener maintains Class 10.9 strength classification with verified 120,000 psi tensile strength and Rockwell C32 hardness for consistent performance across industrial applications.