S-90323A452 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B95 hardness, providing reliable performance under high-stress conditions.
• Precise alignment and location enabled by the accurately machined shoulder with a diameter of 5mm and length of 14mm, minimizing part movement and simplifying assembly.
• Consistent and reliable thread engagement due to the Class 6g thread fit and M4 x 0.7mm coarse pitch, ensuring secure fastening and reducing the risk of cross-threading.
• Space-saving low-profile socket head with a 2.5mm hex drive, allowing for installation in confined spaces while providing ample torque transmission.
• Compliance with major environmental regulations including RoHS 3 and REACH, making it suitable for global supply chains and sensitive applications.
• Dimensional stability and repeatability from tight shoulder tolerances (diameter: -0.025 to 0 mm, length: 0 to 0.05 mm), ensuring consistent performance in precision assemblies.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and pivot point requirements in industrial applications. The 18-8 Stainless Steel material, combined with a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it ideal for machinery, automotive components, and electronic enclosures operating in demanding conditions. The precise shoulder acts as a built-in locating dowel, eliminating the need for additional components and reducing assembly time. Its Class 6g thread fit and coarse pitch ensure quick and secure fastening, while the low-profile socket head allows for flush mounting in space-constrained designs. This fastener delivers reliable engineering value by enhancing assembly accuracy, reducing wear, and maintaining structural integrity in dynamic loads.

Specification Summary & Compliance

This metric shoulder screw adheres to precise dimensional standards, including a Class 6g thread fit per ISO metric thread specifications, ensuring compatibility and interchangeability. The shoulder features a diameter of 5 mm with a tolerance of -0.025 to 0 mm and a length of 14 mm with a tolerance of 0 to 0.05 mm for precise fit in mating parts. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for use in regulated industries and environmentally conscious applications.