S-90323A473 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• Exceptional strength and durability with 80,000 psi tensile strength and Rockwell B95 hardness, capable of withstanding high-stress applications.
• Precise component alignment enabled by the 55mm shoulder with a tight length tolerance (±0.05mm), reducing assembly errors.
• Secure and flush installation with the low-profile socket head and 3mm hex drive, ideal for space-constrained designs.
• Reliable thread engagement due to the Class 6g thread fit and coarse M5x0.8 thread, ensuring consistent fastening performance.
• Enhanced wear resistance from the passivated finish, extending the screw's service life in demanding industrial settings.
• Compliance with global regulations including RoHS 3 and REACH, making it suitable for international supply chains and sensitive applications.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical alignment and durability challenges in industrial machinery, automation systems, and precision instruments. The 55mm shoulder length with minimal tolerance provides a stable bearing surface, eliminating misalignment and reducing wear on moving parts. Manufactured from 18-8 stainless steel with a passivated finish, it offers excellent resistance to corrosion and oxidation, ensuring reliable performance in humid or chemically aggressive environments. The low socket head design allows for compact assembly, while the Class 6g thread fit guarantees secure fastening without loosening under vibration. Ideal for applications requiring precise axial positioning, such as in robotics, conveyor systems, and electronic enclosures, this screw delivers consistent engineering value by enhancing equipment longevity and reducing maintenance downtime.

Specification Summary & Compliance

This M5 shoulder screw adheres to metric thread standards with a coarse pitch of 0.8mm and a Class 6g thread fit for reliable tolerance control. The shoulder diameter is manufactured to a precise tolerance of -0.025 to 0 mm, and the shoulder length maintains a tight tolerance of 0 to 0.05 mm, ensuring exacting dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in regulated industries and environmentally conscious applications.