S-90278A723 M2.2 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 alignment and reduced assembly time thanks to the accurately machined shoulder with tight diameter and length tolerances.
• High mechanical strength with a tensile strength of 70,000 psi and Rockwell B55 hardness for demanding applications.
• Secure and reliable fastening ensured by the Class 6g thread fit, providing consistent performance in metric assemblies.
• Easy installation with standard tools using the 2 mm hex socket drive, preventing cam-out and head stripping.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use.
• Optimized for coarse threading with a 0.45 mm pitch, offering faster assembly and better performance in softer materials.

Professional Applications & Engineering Value

This M2.2 shoulder screw is engineered to solve critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for electronics, medical devices, and automotive components exposed to moisture or chemicals. The precise shoulder fit with controlled tolerances ensures accurate location of parts, reducing wear and misalignment in rotating mechanisms or bearing mounts. Its hex socket head allows for high-torque installation in confined spaces, while the Class 6g metric thread guarantees secure fastening without loosening under vibration. Ideal for applications requiring reliable, repeatable performance, this screw enhances assembly efficiency and product longevity in industrial settings.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M2.2 thread size and 0.45 mm coarse pitch. The thread is manufactured to Class 6g tolerance for consistent fit, while the shoulder features precise dimensions: 3 mm diameter (-0.025 to 0 mm tolerance) and 6 mm length (0 to 0.05 mm tolerance). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance in global markets.