S-90517A250 M5 x 8 mm ASTM F879M Tamper-Resistant Hex Drive Flat Head Screws
Tamper-Resistant Hex Drive Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced tamper resistance with a specialized hex drive design, preventing unauthorized removal in high-security environments.
- Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh conditions.
- High tensile strength of 80,000 psi and Rockwell B96 hardness for reliable performance under heavy loads and stress.
- Precise Class 6g thread fit and coarse M5 x 0.8mm threading for easy installation and secure fastening in industrial applications.
- Full threading along the 8mm length provides maximum grip and uniform load distribution across connected materials.
- Compliance with ASTM F879M, RoHS 3, and REACH standards ensures safety, environmental responsibility, and consistent quality.
- Flat head design with 90° countersink allows for flush mounting, reducing protrusion and improving aesthetics in finished assemblies.
Professional Applications & Engineering Value
This M5 flat head screw with tamper-resistant hex drive is engineered to address critical challenges in industrial and security-focused settings. Made from 18-8 stainless steel and featuring a passivated finish, it resists corrosion, chemicals, and wear, making it ideal for outdoor equipment, machinery, and electronic enclosures. The fully threaded design and Class 6g metric coarse thread ensure quick, secure fastening with minimal risk of stripping, while the tamper-resistant drive deters vandalism and unauthorized access. Suitable for applications requiring ASTM F879M compliance, these screws provide dependable performance in automotive, aerospace, and public infrastructure projects where durability and safety are paramount.
Specification Summary & Compliance
This screw adheres to precise dimensional standards, including M5 x 0.8mm coarse thread with Class 6g tolerance for consistent fit. It is manufactured in compliance with ASTM F879M specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances and safe for various industrial uses.
