S-90269A468 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
• High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for reliable load-bearing in demanding applications
• Precise alignment and spacing ensured by the 28mm shoulder with controlled tolerances, minimizing assembly errors
• Secure and efficient installation using the 2mm hex socket drive and knurled head, preventing tool slippage and enabling high torque application
• Consistent thread engagement with Class 5g6g metric thread fit, reducing the risk of cross-threading and ensuring vibration resistance
• Compliance with environmental standards including RoHS 3 and REACH, making it suitable for global industrial and electronic applications

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical challenges in precision assemblies, such as in machinery, automotive, and electronics. The 316 stainless steel material offers excellent resistance to chemicals and moisture, preventing failure in corrosive settings. The black oxide finish not only enhances aesthetics but also provides an added layer against abrasion and galling. With a 28mm shoulder length and tight diameter tolerance, it acts as a reliable pivot or spacer, reducing misalignment and wear in rotating parts. The hex socket drive and knurled head ensure easy installation in confined spaces, while the Class 5g6g thread fit maintains integrity under dynamic loads. Ideal for applications requiring high shear strength and dimensional stability, this screw delivers long-term reliability and reduces downtime in industrial operations.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M3 x 0.5mm coarse thread and Class 5g6g thread fit for precise tolerance. Key dimensions include a shoulder diameter of 4 mm (tolerance: -0.072 to -0.01 mm) and shoulder length of 28 mm (tolerance: 0 to 0.25 mm), ensuring consistent performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting use in regulated industries. Manufactured to provide 70,000 psi tensile strength and 35,000 psi minimum shear strength, it is suitable for high-stress applications while maintaining Rockwell B79 hardness for durability.