S-93856A122 M2 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Precise component alignment thanks to the accurately machined shoulder with tight diameter tolerance (-0.072 to -0.01 mm).
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding applications.
• Secure and efficient installation with a hex socket drive and knurled head that prevents slipping during torque application.
• Reliable thread engagement ensured by the Class 5g6g thread fit, reducing the risk of cross-threading and assembly failures.
• Versatile shoulder length options from 50 to 99.75 mm to accommodate various spacing and pivoting requirements.
• Compliance with global standards including RoHS 3 and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This M2 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material provides excellent resistance to oxidation and corrosion, making it suitable for electronics, machinery, and automotive components exposed to moisture or chemicals. The hex socket drive and knurled head texture facilitate secure tool engagement, minimizing cam-out and ensuring consistent clamping force in high-vibration environments. With a coarse thread pitch of 0.4 mm, it offers quick assembly and robust holding power. The precisely toleranced shoulder ensures accurate positioning of parts like gears, bearings, and linkages, reducing wear and improving overall system longevity in industrial fastening applications.

Specification Summary & Compliance

This shoulder screw adheres to metric system specifications with an M2 thread size, 0.4 mm coarse pitch, and Class 5g6g thread fit per ISO standards for consistent performance. The shoulder diameter tolerance is tightly controlled between -0.072 to -0.01 mm, and shoulder length tolerance is ±0.05 mm, ensuring precise fits. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in regulated industries without hazardous substances.