S-90388A118 M5 x 8 mm ASME B18.3.4M, ISO 7380 Tamper-Resistant Torx Steel Button Head Screws
Tamper-Resistant Torx Steel Button 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 Torx T25 drive for superior security in public or restricted access applications
- Exceptional corrosion protection from the black-oxide finish, extending service life in demanding industrial environments
- High mechanical strength with 130,000 psi tensile strength and Rockwell C38 hardness for reliable performance under stress
- Precision thread fit with Class 6g tolerance ensuring smooth installation and vibration resistance
- Full thread engagement along the 8 mm length for maximum grip and load distribution
- Standard-compliant design meeting ASME B18.3.4M and ISO 7380 for guaranteed interchangeability
- Regulatory compliance with RoHS 3 and REACH, making it safe for various industrial sectors
Professional Applications & Engineering Value
This M5 tamper-resistant Torx screw is engineered to address critical security and durability challenges in industrial settings. The black-oxide alloy steel construction provides excellent resistance to oxidation and wear, making it ideal for machinery, electronic enclosures, and public infrastructure where unauthorized access is a concern. The coarse thread pitch (0.8 mm) and fully threaded design ensure quick installation and robust holding power, even in materials prone to stripping. With its rounded button head and T25 drive, it combines a low-profile appearance with high-torque capability, reducing the risk of tampering while maintaining structural integrity under dynamic loads. These features make it a preferred choice for OEMs and maintenance teams requiring reliable, long-lasting security fasteners.
Specification Summary & Compliance
This screw features a metric M5 x 0.8 mm coarse thread with a Class 6g tolerance for precise fit. It complies with ASME B18.3.4M and ISO 7380 manufacturing standards, ensuring dimensional accuracy and performance consistency. The product is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for industrial use.
