S-91870A523 M6 x 16 mm ASTM F879M Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Superior tamper resistance with a specialized Torx T30 drive, preventing unauthorized access in high-security environments.
• Excellent corrosion resistance from 18-8 stainless steel and a passivated finish, ensuring long-term reliability in harsh conditions.
• High mechanical strength with 80,000 psi tensile strength and Rockwell B96 hardness, providing dependable performance under heavy loads.
• Precise thread engagement with a Class 6g fit and coarse M6 x 1mm threading, enabling quick installation and secure fastening.
• Full threading design along the 16mm length, offering consistent grip and distribution of stress across the entire fastener.
• Compliance with industry standards including ASTM F879M, RoHS 3, and REACH, ensuring safety and environmental responsibility.
• Flat head profile with 90° countersink for a flush, low-profile finish that minimizes protrusion and enhances aesthetics.

Professional Applications & Engineering Value

This M6 flat head screw is engineered to address critical challenges in industrial and security-focused applications. The 18-8 stainless steel material, combined with a passivated finish, provides exceptional resistance to rust and chemical exposure, making it ideal for outdoor equipment, marine hardware, and chemical processing facilities. The tamper-resistant Torx T30 drive ensures that the fastener remains secure in public infrastructure, electronic enclosures, and machinery where unauthorized tampering is a concern. With a fully threaded design and Class 6g thread fit, it offers reliable clamping force and vibration resistance, reducing maintenance needs in automotive assemblies, construction frameworks, and heavy-duty manufacturing. By integrating these features, this screw delivers long-term durability and operational safety, meeting the demands of B2B procurement for high-performance metric fasteners.

Specification Summary & Compliance

This product adheres to precise dimensional and performance standards, including a Class 6g thread fit for metric coarse threading (M6 x 1mm) and a length of 16mm. It complies with ASTM F879M specifications for socket head cap screws, ensuring consistent quality and mechanical properties. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its environmental and safety compliance for global industrial use.