S-90729A269 M4 x 16 mm Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments including marine and chemical applications
• Enhanced durability and strength with Rockwell B70 hardness and 70,000 psi tensile strength for reliable performance under high stress
• Secure and flush installation thanks to the flat undercut head design and 100° countersink angle, minimizing protrusion and improving aesthetics
• Efficient assembly and removal with a 2.5 mm hex drive, providing better torque transfer and reducing tool slippage
• Consistent thread engagement with Class 6g thread fit and coarse 0.7 mm pitch, ensuring easy alignment and vibration resistance
• Full-length threading for maximum grip across the entire 16 mm length, enhancing holding power in various materials
• Long-lasting surface protection through passivated finish, which increases corrosion resistance and extends service life

Professional Applications & Engineering Value

This M4 flat head screw in 316 Stainless Steel is engineered to address critical challenges in industrial settings, such as corrosion from moisture, chemicals, and saltwater exposure. The passivated finish and high-grade material provide exceptional resistance to pitting and rust, making it suitable for marine equipment, food processing machinery, and outdoor structures. The hex drive and fully threaded design ensure quick, secure fastening in tight spaces, reducing installation time and preventing loosening under vibration. With a coarse thread pitch of 0.7 mm, it offers reliable performance in soft materials like wood and plastic, while the precise Class 6g thread fit maintains alignment in metal assemblies. Ideal for demanding applications requiring durability and compliance, this screw delivers consistent value in maintenance, manufacturing, and engineering projects.

Specification Summary & Compliance

This metric screw adheres to precise dimensional standards, including a thread fit of Class 6g for consistent ISO-compliant tolerances, and a head diameter tolerance of -0.127 to 0.127 mm for accurate fit. It meets key regulatory requirements, being RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it is free from hazardous substances and suitable for global industrial use. The specifications cover a length of 16 mm, M4 thread size, and coarse spacing, supporting reliable performance in diverse fastening scenarios.