S-91304A127 M5 x 30 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 10.9 strength rating and 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through blue-dyed zinc plating that protects against rust and extends service life
• Precise countersinking capability with 90° flat head profile ensuring flush mounting and clean finished appearance
• Quick installation and removal using standard 3mm hex drive for efficient assembly and maintenance operations
• Secure fastening performance with coarse M5 x 0.8mm threading that provides excellent grip in various materials
• Full-thread engagement along the entire 30mm length for maximum holding power and load distribution
• Regulatory compliance assurance meeting international standards for safety and environmental requirements

Professional Applications & Engineering Value

This high-strength metric flat head screw delivers exceptional engineering value in industrial applications where reliability and precision are paramount. The Class 10.9 alloy steel construction provides superior load-bearing capacity, making it ideal for machinery assembly, automotive components, and structural frameworks requiring high tensile strength. The blue-dyed zinc plating offers both corrosion protection and visual identification benefits, while the 90° countersink angle ensures seamless integration into prepared surfaces. The hex drive design allows for high-torque installation without slippage, and the coarse M5 threading maintains secure fastening even in vibration-prone environments. These flat head screws solve critical engineering challenges by combining structural integrity with regulatory compliance for demanding industrial settings.

Specification Summary & Compliance

This fastener features precision Class 6g thread fit according to metric standards, ensuring consistent engagement and reliable performance. Manufacturing complies with DIN 7991 and ISO 10642 specifications for dimensional accuracy and quality control. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming compliance with current hazardous substance restrictions. The fully threaded design maintains uniform engagement throughout the 30mm length, while the Rockwell C32 hardness rating ensures optimal durability without compromising machinability.