S-91263A874 M4 x 35 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with Class 10.9 strength rating and 120,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance through zinc-plated alloy steel construction, extending service life in challenging environments
• Precision installation and removal with 2.5mm hex drive design providing secure tool engagement and reduced stripping risk
• Optimal material hardness at Rockwell C32 ensures excellent wear resistance and thread integrity over repeated use
• Full threading along the 35mm length delivers maximum grip and holding power across the entire fastener
• Standardized metric dimensions with M4 x 0.7mm coarse thread ensuring compatibility with existing industrial equipment
• Regulatory compliance assurance meeting DIN 7991, RoHS 3, and REACH standards for global market acceptance

Professional Applications & Engineering Value

This M4 flat head screw delivers critical engineering solutions where high tensile strength and reliable fastening are paramount. The zinc-plated alloy steel construction provides essential corrosion protection for machinery, automotive assemblies, and industrial equipment exposed to harsh environments. The flat head design with 90° countersink creates flush surface finishes while the hex drive enables high-torque installation without cam-out. With Class 10.9 strength classification and fully threaded configuration, this fastener maintains joint integrity under vibration and dynamic loads, making it ideal for critical structural applications where failure is not an option. The metric coarse thread ensures quick assembly and disassembly while providing superior pull-out resistance in metal substrates.

Specification Summary & Compliance

This fastener maintains Class 6g thread fit tolerance according to ISO metric standards, ensuring precise engagement with mating components. Manufacturing conforms to DIN 7991 specifications for dimensional accuracy and performance requirements. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety. The combination of 35mm length, M4 diameter, and 0.7mm pitch provides standardized metric sizing for consistent performance across industrial applications.