S-90278A334 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and reducing replacement frequency.
• Precise alignment and smooth rotation ensured by the Class 6g thread fit and controlled shoulder diameter tolerance (-0.025 to 0 mm).
• High mechanical strength and durability from 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under load.
• Secure and efficient installation using a standard 3 mm hex drive, preventing cam-out and ensuring consistent torque application.
• Versatile coarse thread (M5x0.8mm) facilitates quick assembly and disassembly, saving time in maintenance and production.
• Environmental and regulatory compliance with RoHS 3 and REACH, making it safe for various global industrial applications.
• Accurate component spacing provided by the 10 mm shoulder length with minimal tolerance, enhancing assembly precision.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical alignment and wear issues in industrial applications. The 18-8 stainless steel material offers excellent resistance to corrosion and oxidation, extending service life in demanding conditions like machinery, automotive assemblies, and electronic enclosures. The precise shoulder diameter and Class 6g thread fit ensure minimal play, reducing vibration-induced loosening and improving the longevity of moving parts. With a coarse thread pitch of 0.8 mm, it allows for faster installation and reliable holding in materials where fine threads might strip. The socket head design with a 3 mm hex drive enables easy access in confined spaces, streamlining maintenance and reducing downtime. This combination of features makes it a reliable choice for engineers seeking durability, precision, and compliance in metric shoulder screw solutions.

Specification Summary & Compliance

This shoulder screw adheres to metric thread standards with an M5x0.8 mm coarse thread and Class 6g thread fit for consistent dimensional accuracy. The shoulder diameter tolerance is -0.025 to 0 mm, and shoulder length tolerance is 0 to 0.05 mm, ensuring precise fit in assembly. Manufactured from 18-8 stainless steel, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting use in regulated industries without hazardous substances.