S-90269A491 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life.
• Enhanced durability and wear resistance provided by the Black Oxide finish, reducing maintenance needs.
• Secure, non-slip fastening enabled by the knurled hex socket head, allowing for high-torque application with a 2 mm drive.
• Precise component alignment and pivot points due to the 4 mm shoulder diameter with tight tolerances, ensuring reliable assembly.
• High mechanical strength with 70,000 psi tensile strength and 35,000 psi minimum shear strength, suitable for demanding applications.
• Reliable thread engagement with Class 5g6g fit and coarse M3 x 0.5 mm thread, facilitating quick and stable installation.
• Compliance with environmental regulations, being RoHS 3 and REACH compliant, ensuring safe use in various industries.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and pivot challenges in precision assemblies. Made from 316 Stainless Steel and finished with Black Oxide, it offers exceptional resistance to corrosion and wear, making it ideal for machinery, automotive, and electronics where exposure to moisture or chemicals is common. The hex socket head with knurling ensures a firm grip, preventing slippage during high-torque installations. The precisely machined shoulder (4 mm diameter, 6 mm length) provides a stable bearing surface, reducing wear on connected parts and maintaining alignment in dynamic applications. With a coarse thread pitch of 0.5 mm and Class 5g6g thread fit, it enables rapid assembly without compromising strength, streamlining production processes and minimizing downtime in industrial settings.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards, featuring an M3 thread size with 0.5 mm coarse pitch and Class 5g6g thread fit for precise tolerance. The shoulder diameter is 4 mm with a tolerance of -0.072 to -0.01 mm, and shoulder length is 6 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications.