S-90517A350 M6 x 30 mm ASTM F879M Tamper-Resistant Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced Security: Tamper-resistant hex drive prevents unauthorized removal, ideal for public or high-security installations.
• Superior Corrosion Resistance: Made from 18-8 Stainless Steel with a passivated finish for excellent durability in harsh environments.
• High Mechanical Strength: Withstands significant stress with a tensile strength of 80,000 psi and a hardness of Rockwell B96.
• Reliable Thread Engagement: Fully threaded design with a Class 6g fit ensures consistent, secure fastening in coarse-thread applications.
• Flush and Secure Fit: Flat head with a standard profile and 90° countersink angle sits flush for a smooth, snag-free surface.
• Broad Industrial Compliance: Manufactured to meet ASTM F879M specifications and is RoHS 3 and REACH compliant for safe, regulated use.
• Optimized for Metric Systems: M6 x 1 mm pitch coarse thread and 30 mm length provide a reliable, standardized solution for metric-based designs.

Professional Applications & Engineering Value

This M6 flat head screw is engineered to solve critical challenges in industrial assembly and public infrastructure. Its 18-8 Stainless Steel construction and passivated finish provide exceptional resistance to corrosion and oxidation, making it ideal for outdoor equipment, marine hardware, and chemical processing facilities. The tamper-resistant hex drive is a key security feature, deterring vandalism and unauthorized access in applications like electrical enclosures, public benches, and transportation systems. The fully threaded shank with a Class 6g thread fit ensures maximum grip and vibration resistance in metals and plastics, reducing the risk of loosening under dynamic loads. This combination of material durability and security design delivers long-term reliability and safety in demanding industrial and security screw applications.

Specification Summary & Compliance

This screw features an M6 x 1 mm coarse metric thread with a Class 6g tolerance for precise fit. It is fully threaded and measures 30 mm in length. Manufacturing and material quality comply with the ASTM F879M standard. The product is also confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets stringent environmental and safety regulations for hazardous substances.