S-90729A567 M8 x 25 mm Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh environments due to 316 stainless steel construction with passivated finish, ideal for marine, chemical, and outdoor applications.
• High mechanical strength and durability with Rockwell B70 hardness and 70,000 psi tensile strength, ensuring reliable performance under heavy loads and stress.
• Secure and efficient installation provided by the hex drive (5 mm) and fully threaded design, allowing for high torque application and reduced slipping.
• Precise flush mounting enabled by the flat undercut head and 100° countersink angle, minimizing protrusion for a smooth, professional finish.
• Accurate and reliable threading with Class 6g thread fit and coarse M8 x 1.25 mm pitch, ensuring easy alignment and strong holding power in various materials.
• Consistent dimensional stability thanks to tight head diameter tolerance (-0.127 to 0.127 mm), promoting uniform performance in automated or precision assemblies.
• Compliance with environmental and safety standards, including RoHS 3 and REACH, making it suitable for global industrial and regulatory requirements.

Professional Applications & Engineering Value

This M8 flat head screw in 316 stainless steel is engineered to address critical challenges in demanding industrial settings, such as corrosion from moisture, chemicals, and saltwater exposure. The passivated finish enhances surface protection, reducing the risk of rust and extending service life in applications like marine equipment, food processing machinery, and structural assemblies. Its fully threaded metric design with a coarse thread pitch ensures rapid installation and high resistance to vibration loosening, while the hex drive allows for secure tightening in confined spaces. By combining high tensile strength and precise Class 6g thread fit, this screw delivers reliable fastening in metal, plastic, and composite materials, minimizing downtime and maintenance costs for engineers and OEMs.

Specification Summary & Compliance

This product adheres to metric system standards with precise dimensions: M8 thread size, 1.25 mm pitch, 25 mm length, and head diameter of 16 mm (±0.127 mm tolerance). Threading conforms to Class 6g fit for consistent engagement and performance. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for industrial and international supply chains.