S-92178A163 M4 x 10 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 Torx T15 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 that withstands temperatures from -40° to 225° F.
• High tensile strength of 100,000 psi provides exceptional load-bearing capacity and durability under stress.
• Precise Class 6g thread fit ensures easy installation and secure fastening in metric assemblies.
• Broad regulatory compliance with ASTM F879M, RoHS 3, and REACH standards, guaranteeing safety and environmental responsibility.
• Fully threaded M4 x 0.7 mm coarse pitch design offers maximum grip and holding power in a compact 10 mm length.

Professional Applications & Engineering Value

This M4 metric screw is engineered to address critical sealing and security challenges in industrial settings. The passivated 18-8 stainless steel material provides excellent corrosion resistance, making it ideal for outdoor, marine, or chemical-exposed applications. Its tamper-resistant Torx T15 drive enhances security in public infrastructure, electronics, and machinery, deterring vandalism. The inclusion of a Buna-N rubber O-ring ensures a tight seal against fluids and gases up to 1500 psi, preventing leaks in pneumatic systems, fluid handling equipment, and automotive components. With a fully threaded coarse pitch and Class 6g fit, it simplifies installation while maintaining high tensile strength for demanding mechanical assemblies, reducing maintenance needs and downtime.

Specification Summary & Compliance

This screw features precise M4 x 0.7 mm coarse thread with Class 6g tolerance for accurate fit. It meets ASTM F879M specifications, ensuring performance in sealing applications, and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards for environmental safety.