S-90323A443 M3 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
• Precise component alignment ensured by the 30mm shoulder with tight diameter tolerance (-0.025 to 0 mm) for reduced assembly errors
• High mechanical strength with 80,000 psi tensile strength and Rockwell B95 hardness for reliable performance under load
• Accurate thread engagement through Class 6g thread fit and M3x0.5 coarse pitch, facilitating quick and secure fastening
• Space-saving low-profile design with smooth low socket head and 2mm hex drive, allowing installation in confined areas
• Compliance with global standards including RoHS 3 and REACH, ensuring environmental safety and regulatory acceptance
• Enhanced durability from the precise shoulder fit and robust material, minimizing wear in high-cycle applications

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to corrosion and oxidation, making it suitable for industrial environments exposed to moisture or chemicals. The 30mm shoulder length with minimal tolerance ensures precise positioning of components like bearings, gears, or linkages, reducing vibration and misalignment issues. With its low socket head and hex drive, it offers easy installation in tight spaces while maintaining a secure fit. Ideal for machinery, automation systems, and electronic enclosures, this screw delivers reliable performance where thread accuracy and shoulder stability are paramount.

Specification Summary & Compliance

This metric shoulder screw adheres to precise dimensional standards, including a Class 6g thread fit for accurate engagement and a shoulder diameter tolerance of -0.025 to 0 mm. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. Manufactured to meet industrial requirements for tensile strength and hardness, it is suitable for applications demanding high reliability and environmental safety.