S-90269A799 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Enhanced durability and wear resistance provided by the black oxide finish, which also reduces light reflection and galling.
• High mechanical strength with 70,000 psi tensile strength and 35,000 psi shear strength, ensuring reliable performance under heavy loads.
• Precise alignment and smooth rotation due to the accurately machined shoulder with a diameter of 12 mm and length of 55 mm.
• Secure and easy installation with a knurled socket head and 6 mm hex drive, preventing tool slippage and enabling high torque application.
• Consistent thread engagement guaranteed by the Class 5g6g thread fit and M8x1.25 coarse thread, reducing the risk of cross-threading.
• Compliance with strict environmental regulations, being RoHS 3 and REACH compliant for use in regulated industries.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and pivot point requirements in demanding applications. The 316 stainless steel material offers excellent resistance to chemicals and saltwater, making it suitable for marine, chemical processing, and food machinery. The black oxide finish not only enhances corrosion protection but also minimizes friction during assembly. The precision 55mm shoulder length and 12mm shoulder diameter provide a stable bearing surface for rotating components like gears, pulleys, and linkages, reducing wear and ensuring long-term operational accuracy. With its high tensile and shear strength, this socket head shoulder bolt is ideal for securing parts in automation equipment, conveyor systems, and precision instruments where reliability is paramount.

Specification Summary & Compliance

This shoulder screw features a Metric M8x1.25 coarse thread with a Class 5g6g thread fit for standard tolerance applications. The shoulder diameter tolerance is -0.072 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm, ensuring precise dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environments with strict environmental and safety standards.