S-90323A605 M2 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Enhanced durability and strength with Rockwell B90 hardness and 85,000 psi tensile strength for reliable performance
• Precise component alignment due to the accurate 3mm shoulder diameter and 6mm shoulder length with tight tolerances
• Easy installation and removal with the hex socket low head design, requiring only a 1.5mm hex key
• Secure and consistent fastening ensured by the Class 6g thread fit and coarse 0.4mm pitch for quick assembly
• Improved chemical resistance from the passivated finish, extending the screw's service life
• Compliance with environmental standards including RoHS 3 and REACH, making it suitable for regulated industries

Professional Applications & Engineering Value

This M2 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. Its 18-8 stainless steel material and passivated finish provide excellent resistance to corrosion and wear, making it ideal for applications in electronics, machinery, and automotive components where exposure to moisture or chemicals is common. The low head hex socket design allows for compact installations in tight spaces, while the precise shoulder fit ensures accurate positioning of moving parts, reducing vibration and misalignment issues. With a right-hand metric thread and coarse pitch, it enables rapid and secure fastening, enhancing efficiency in high-volume production environments. This screw delivers reliable performance in demanding industrial settings, from robotics to medical devices, by combining strength, precision, and compliance.

Specification Summary & Compliance

This precision shoulder screw features a Class 6g thread fit with an M2 x 0.4mm thread size, ensuring dimensional accuracy per metric standards. The shoulder diameter is 3mm with a tolerance of -0.025 to 0 mm, and the shoulder length is 6mm with a tolerance of 0 to 0.05 mm, providing a precise fit for engineering applications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industries. Manufactured from 18-8 stainless steel with a passivated finish, it meets high standards for mechanical properties, including a tensile strength of 85,000 psi, supporting reliable use in various technical and industrial contexts.