S-90910A902 M1.6 x 5 mm ASME B18.3.4M Stainless Steel Button Head Torx Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• Enhanced torque transmission and reduced cam-out thanks to the Torx T5 drive, providing secure fastening and minimizing tool slippage.
• High tensile strength of 100,000 psi and Rockwell B96 hardness for dependable performance under mechanical stress.
• Precise and reliable thread engagement with Class 4g6g fit and fully threaded design, ensuring consistent clamping force.
• Compact, low-profile button head with rounded design for applications where space is limited and a smooth finish is desired.
• Broad industrial compliance meeting ASME B18.3.4M standards, RoHS 3, and REACH regulations for safe, global use.
• Coarse thread pitch (0.35 mm) facilitates quicker installation and improved resistance to vibration loosening.

Professional Applications & Engineering Value

This M1.6 metric screw is engineered for precision assemblies in electronics, medical devices, and small machinery where space constraints and reliability are critical. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to oxidation and chemical exposure, extending service life in demanding conditions. The Torx button head and T5 drive allow for high torque application without stripping, ensuring secure fastening in compact designs. Its fully threaded body and Class 4g6g thread fit deliver uniform load distribution, reducing the risk of joint failure. Ideal for applications requiring repeated disassembly, this screw offers consistent performance and ease of maintenance.

Specification Summary & Compliance

This screw features a metric thread size M1.6 x 0.35 mm pitch with a Class 4g6g thread fit for precise dimensional accuracy. It is manufactured in compliance with ASME B18.3.4M standards and is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring adherence to international safety and environmental regulations. The right-hand, coarse threading and 5 mm length support efficient installation and robust performance in industrial settings.