S-90729A365 M5 x 8 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 and passivated finish.
• Superior drive stability and torque transmission with the 3 mm hex drive, reducing the risk of stripping during installation.
• Reliable flush seating and reduced risk of material lifting thanks to the undercut flat head profile.
• Consistent and secure fastening ensured by the fully threaded Class 6g metric coarse thread for easy assembly and high vibration resistance.
• High mechanical strength for demanding applications with a tensile strength of 70,000 psi and Rockwell B70 hardness.
• Compliance with major environmental and safety regulations, including RoHS 3 and REACH, for use in regulated industries.
• Precision dimensional tolerances on head diameter for a uniform and professional finish in your assemblies.

Professional Applications & Engineering Value

This M5 flat head screw is engineered to solve critical challenges in industrial and marine applications where corrosion resistance and mechanical integrity are paramount. The 316 stainless steel material, combined with a passivated finish, provides long-term durability against chemicals, saltwater, and extreme weather, reducing maintenance costs and downtime. The undercut flat head profile ensures a flush fit, preventing interference and material stress, while the hex drive offers high torque capability for secure installations in machinery, electrical enclosures, and structural frameworks. Its fully threaded metric coarse thread (M5 x 0.8mm) enables quick, reliable fastening in metals and plastics, making it ideal for assembly lines, automotive components, and outdoor equipment where vibration resistance and ease of use are critical.

Specification Summary & Compliance

This screw adheres to metric coarse thread standards with a Class 6g thread fit for precise dimensional accuracy. Key specifications include an M5 thread size, 0.8 mm pitch, 8 mm length, and head diameter tolerance of -0.127 to 0.127 mm. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial and consumer applications.