S-90323A609 M2 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
• Exceptional mechanical strength with Rockwell B90 hardness and 85,000 psi tensile strength for reliable, long-term performance.
• Precise component alignment ensured by the 12mm shoulder with tight diameter and length tolerances for stable assemblies.
• Secure, low-profile installation via the smooth low-profile socket head and 1.5mm hex drive, minimizing protrusion in compact spaces.
• Consistent thread engagement with Class 6g thread fit and coarse 0.4mm pitch for faster assembly and reduced cross-threading risk.
• Compliance with environmental regulations, being RoHS 3 and REACH compliant for safe use in regulated industries.
• Right-hand thread design for standard installation procedures and broad compatibility with metric components.

Professional Applications & Engineering Value

This M2 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 12mm shoulder length with precise tolerances provides a stable bearing surface, preventing lateral movement in machinery, electronics, and automotive components. Made from 18-8 stainless steel with a passivated finish, it resists corrosion from moisture and chemicals, extending service life in demanding conditions. The low-profile socket head and hex drive allow for secure tightening in confined spaces, reducing the risk of stripping. Ideal for applications requiring reliable metric coarse thread performance, this screw ensures consistent fastening in high-vibration environments, supporting efficient production and maintenance.

Specification Summary & Compliance

This shoulder screw features a Class 6g thread fit per metric standards, with a shoulder diameter tolerance of -0.025 to 0 mm and length tolerance of 0 to 0.05 mm for high precision. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. The right-hand M2 x 0.4mm coarse thread and precise shoulder fit adhere to industrial manufacturing norms, providing reliable performance in technical applications.