S-91870A480 M5 x 8 mm ASTM F879M Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with T25 Torx drive design to prevent unauthorized access in secure environments.
• Superior corrosion resistance from 18-8 stainless steel and passivated finish, ideal for harsh or outdoor applications.
• High tensile strength of 80,000 psi ensures reliable, long-lasting fastening under demanding loads.
• Rockwell B96 hardness provides excellent durability and resistance to wear over repeated use.
• Fully threaded M5 coarse pitch (0.8mm) allows for quick installation and strong grip in various materials.
• Class 6g thread fit guarantees precise, consistent engagement for reduced assembly issues.
• Compliance with ASTM F879M, RoHS 3, and REACH ensures safety, environmental responsibility, and industry-standard quality.

Professional Applications & Engineering Value

This M5 flat head screw with a tamper-resistant Torx drive is engineered to address critical needs in industrial and security-focused settings. The 18-8 stainless steel material and passivated finish provide exceptional resistance to rust and chemicals, making it suitable for applications exposed to moisture or corrosive agents, such as outdoor machinery, electronic enclosures, and medical devices. The flat head design sits flush with surfaces, reducing snagging and improving aesthetics, while the coarse thread metric configuration ensures fast, secure fastening in metals, plastics, and composites. By integrating high tensile strength and precise Class 6g thread tolerances, it minimizes the risk of stripping or loosening under vibration, offering a dependable solution for assembly lines, automotive components, and public infrastructure where reliability and security are paramount.

Specification Summary & Compliance

This product features a metric M5 x 0.8mm coarse thread with Class 6g thread fit for precise dimensional accuracy, ensuring consistent performance in industrial fastening. It is manufactured in compliance with ASTM F879M specifications, meeting rigorous mechanical and quality standards. Additionally, it is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.