S-92178A174 M5 x 25 mm ASTM F879M, ISO 7380 Sealing Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• Enhanced security and tamper resistance via the T25 Torx drive, preventing unauthorized access in sensitive applications.
• Reliable fluid and gas sealing up to 1500 psi, thanks to the integrated Buna-N rubber O-ring for leak-proof assemblies.
• Wide operational temperature tolerance from -40° to 225° F, maintaining seal integrity and performance under extreme conditions.
• High tensile strength of 100,000 psi provides robust clamping force and structural stability for demanding mechanical loads.
• Precision Class 6g thread fit ensures smooth installation and secure fastening with coarse M5 x 0.8 mm metric threading.
• Rounded button head design offers a low-profile, aesthetically clean finish while reducing snagging risks.

Professional Applications & Engineering Value

This M5 metric screw is engineered to address critical sealing and security challenges in industrial settings. The passivated 18-8 stainless steel material combats corrosion, while the Buna-N rubber O-ring creates a dependable seal against fluids and gases, ideal for pressurized systems in automotive, machinery, and electronic enclosures. The tamper-resistant Torx drive (T25) deters vandalism and unauthorized disassembly, making it perfect for public infrastructure, transportation, and safety-critical equipment. With a fully threaded design and coarse thread pitch, it ensures quick, secure installation, reducing assembly time and improving operational efficiency in high-volume production environments.

Specification Summary & Compliance

This screw features precise M5 x 0.8 mm coarse threading with a Class 6g thread fit for consistent engagement. It complies with ASTM F879M and ISO 7380 manufacturing standards, ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for global industrial use.