S-90278A307 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 stainless steel construction ensures long-term durability and reliability in harsh industrial environments.
• Precise 6mm shoulder diameter with tight tolerances provides accurate alignment and smooth rotation for moving parts in assemblies.
• 40mm shoulder length with controlled length tolerance offers consistent spacing and support for components like gears and pulleys.
• Hex socket drive (3mm) allows for secure, high-torque installation and removal, minimizing tool slippage and damage.
• Class 6g thread fit with M5x0.8 coarse pitch ensures easy assembly and reliable fastening in high-vibration applications.
• High tensile strength (70,000 psi) and Rockwell B55 hardness deliver excellent load-bearing capacity and resistance to deformation.
• Compliance with RoHS 3 and REACH standards guarantees environmental safety and regulatory acceptance for global supply chains.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical alignment and wear issues in mechanical systems. The 18-8 stainless steel material provides superior corrosion resistance, making it ideal for applications in moist or chemically aggressive settings, such as food processing equipment, marine hardware, and outdoor machinery. The smooth, precise shoulder acts as a pivot or axle, reducing friction and preventing misalignment in rotating assemblies like bearings, linkages, and cam followers. With its hex socket drive, installers can apply consistent torque without stripping the head, ensuring repeatable performance in automated production lines. The M5x0.8 coarse thread facilitates quick installation while maintaining a secure hold, essential for maintaining precision in high-stress industrial environments where vibration loosening is a concern.

Specification Summary & Compliance

This M5 shoulder screw features a Class 6g thread fit per metric standards, ensuring dimensional accuracy and interchangeability. The shoulder diameter tolerance is -0.025 to 0 mm, and shoulder length tolerance is 0 to 0.05 mm, providing a precise fit for demanding applications. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for industrial components.