S-90265A138 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.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi minimum shear strength for reliable performance under load.
• Precise component alignment enabled by the 6mm shoulder diameter with tight tolerance, minimizing assembly play.
• Secure and efficient installation using the 3mm hex socket drive, preventing tool slippage and ensuring consistent torque application.
• Durable thread engagement with Class 5g6g metric coarse (0.8mm pitch) threads, resisting vibration loosening in dynamic applications.
• Broad regulatory compliance with RoHS 3 and REACH standards, ensuring environmental safety and global market acceptance.
• Consistent hardness at Rockwell B55, providing excellent wear resistance and long service life.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 18-8 stainless steel material offers excellent corrosion resistance, making it suitable for machinery exposed to moisture, chemicals, or outdoor conditions. The 6mm shoulder diameter with precise tolerance ensures accurate positioning of components like gears, pulleys, and linkages, reducing wear and misalignment. The hex socket head allows for compact installation in confined spaces, while the coarse thread (0.8mm pitch) provides rapid assembly and robust holding power in high-vibration environments such as automotive assemblies, conveyor systems, and precision instruments. Its high tensile and shear strength ensures reliability in demanding mechanical systems, enhancing overall equipment longevity and reducing maintenance downtime.

Specification Summary & Compliance

This metric shoulder screw features an M5x0.8 thread with Class 5g6g tolerance for precise fit, a shoulder diameter of 6 mm (tolerance: -0.072 to -0.01 mm), and shoulder length of 6 mm (tolerance: 0 to 0.25 mm). It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to international environmental and safety standards for industrial fasteners.