S-90278A717 M1.6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Precise component alignment thanks to the 12mm shoulder with tight length tolerance (+0.05mm), reducing assembly time and improving product quality.
• High mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness, providing dependable performance under load.
• Secure and efficient installation using a standard 1.5mm hex drive, minimizing stripping and enabling consistent torque application.
• Accurate thread engagement with Class 6g metric coarse thread (M1.6x0.35mm), ensuring reliable fastening and vibration resistance.
• Environmental compliance assurance by meeting RoHS 3 and REACH regulations, supporting your green manufacturing initiatives.
• Smooth head profile for clean aesthetics and reduced risk of snagging in sensitive applications.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical alignment and durability challenges in compact assemblies. The 18-8 stainless steel material offers excellent resistance to oxidation and chemical exposure, making it ideal for electronics, medical devices, and precision instruments where corrosion can compromise performance. The 12mm shoulder length with precise tolerances acts as a reliable pivot or spacer, eliminating the need for additional components and reducing assembly errors. With its Class 6g thread fit and coarse thread spacing, it ensures quick installation and stable retention in industrial applications subject to vibration. The socket head design with a 1.5mm hex drive allows for high-torque installation in confined spaces, enhancing productivity in automated or manual assembly lines.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M1.6x0.35mm coarse thread and Class 6g thread fit for consistent performance. The shoulder diameter is 2.5mm with a tolerance of -0.025 to 0mm, and the shoulder length is 12mm with a +0.05mm tolerance, ensuring precise dimensional control. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for regulated industries.