S-91870A360 M3 x 6 mm ASTM F879M Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with specialized T10 Torx drive, preventing unauthorized access in high-security environments.
• Superior corrosion resistance from 18-8 stainless steel and passivated finish, ensuring long-term reliability in harsh conditions.
• High mechanical strength with 80,000 psi tensile strength and Rockwell B96 hardness for demanding industrial applications.
• Precise thread engagement with Class 6g fit and coarse M3 x 0.5mm thread, providing secure fastening and vibration resistance.
• Flush installation due to standard 90° countersink angle and flat head design, minimizing protrusion for smooth surfaces.
• Full regulatory compliance with ASTM F879M, RoHS 3, and REACH, ensuring safety and environmental standards are met.
• Right-hand coarse threading for quick assembly and robust holding power in various materials.

Professional Applications & Engineering Value

This M3 flat head screw is engineered to address critical industrial challenges where security, durability, and corrosion resistance are paramount. The 18-8 stainless steel construction, combined with a passivated finish, effectively resists oxidation and chemical exposure, making it ideal for outdoor equipment, marine hardware, and electronic enclosures. The tamper-resistant T10 Torx drive deters vandalism and unauthorized disassembly in public infrastructure, security systems, and transportation components. Its fully threaded design and Class 6g thread fit ensure consistent clamping force and reduced loosening under dynamic loads. By integrating these features, the screw provides reliable performance in industrial fastening applications, from machinery assembly to consumer electronics, where long-term integrity and compliance with ASTM F879M are essential.

Specification Summary & Compliance

This metric screw features precise M3 x 0.5mm coarse threads with a Class 6g tolerance for accurate fit and performance. Manufacturing adheres to ASTM F879M specifications, ensuring consistent quality and dimensional stability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for various industrial and consumer applications.