S-90318A416 M2 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish for long-lasting performance in harsh environments
• Space-saving ultra-low profile head allows for compact assemblies and tight clearance applications
• High-strength construction delivers 95,000 psi tensile strength and Rockwell B97 hardness for reliable load-bearing capability
• Precise shoulder alignment with tight diameter tolerance (-0.03 to 0mm) ensures accurate component positioning
• Secure hex drive engagement with 1.5mm drive size prevents stripping and enables consistent torque application
• Reliable thread performance with Class 6g fit and coarse 0.4mm pitch for quick assembly and vibration resistance
• Environmental compliance meets RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

This precision shoulder screw solves critical alignment challenges in compact mechanical systems where space constraints and corrosion resistance are paramount. The ultra-low profile socket head design minimizes protrusion in tight assemblies while maintaining full 1.5mm hex drive functionality. Manufactured from 18-8 stainless steel with passivated finish, it provides excellent protection against oxidation and chemical exposure in industrial environments. The precisely controlled 3mm shoulder diameter with tight tolerances ensures accurate component positioning in precision instruments, optical devices, and electronic enclosures. The Class 6g thread fit combined with coarse 0.4mm pitch delivers secure fastening with reduced installation time, making it ideal for high-volume production applications requiring both precision and efficiency.

Specification Summary & Compliance

This M2 shoulder screw features metric coarse threading with 0.4mm pitch and Class 6g thread fit per ISO standards. Shoulder specifications include 3mm diameter with -0.03 to 0mm tolerance and 8mm length with 0 to 0.06mm tolerance for precise component alignment. The fastener complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency for industrial applications worldwide.