S-90265A357 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 Stainless Steel construction ensures long-term durability in harsh environments, reducing maintenance costs and downtime.
• Precision 70mm shoulder length with tight tolerances provides accurate alignment and smooth rotation for assemblies, minimizing wear and vibration.
• Knurled socket head with 6mm hex drive delivers superior torque transmission and slip-resistant handling during installation.
• High tensile strength of 70,000 PSI and Rockwell B83 hardness offers reliable load-bearing capacity and resistance to deformation under stress.
• Class 5g6g thread fit and M8x1.25 coarse pitch ensures easy assembly and secure fastening in industrial applications.
• Compliance with ISO 7379, RoHS 3, and REACH guarantees adherence to international standards for safety and environmental regulations.
• Versatile metric design with 12mm shoulder diameter supports precise component positioning in machinery and equipment.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered from 18-8 Stainless Steel to address common industrial challenges like corrosion, misalignment, and mechanical failure. The 70mm shoulder length acts as a precise pivot or spacer, reducing friction and ensuring smooth operation in rotating assemblies, such as in conveyor systems, automotive parts, and precision instruments. The knurled socket head with a 6mm hex drive enhances grip and torque application, preventing stripping during high-stress installations. With a coarse thread pitch of 1.25mm and Class 5g6g thread fit, it simplifies fastening in coarse-threaded applications, while the robust tensile and shear strength supports heavy-duty use in machinery, robotics, and assembly lines, ensuring long-term reliability and reduced maintenance.

Specification Summary & Compliance

This shoulder screw features a metric M8x1.25 thread with Class 5g6g tolerance for precise fit, a shoulder diameter of 12 mm with tolerance from -0.072 to -0.01 mm, and shoulder length of 70 mm with tolerance of 0 to 0.25 mm. It meets ISO 7379 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and quality assurance for industrial use.