S-90269A808 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure.
• Enhanced durability and wear resistance from the black oxide finish, which also provides a sleek, non-reflective appearance.
• Precise component alignment and smooth rotation ensured by the 60mm shoulder with tight diameter tolerance for reliable performance in assemblies.
• High-strength fastening with a tensile strength of 70,000 psi and shear strength of 35,000 psi, suitable for demanding mechanical applications.
• Easy installation and removal using a standard 6mm hex key, combined with a knurled head for improved grip during manual adjustments.
• Accurate and secure thread engagement with a coarse M8x1.25 thread and Class 5g6g fit, reducing the risk of cross-threading.
• Compliance with international environmental standards including RoHS 3 and REACH, ensuring safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical challenges in industrial settings, such as maintaining alignment in rotating assemblies and withstanding corrosive conditions. The 316 stainless steel material offers excellent resistance to pitting and crevice corrosion, making it suitable for marine, chemical processing, and food industry applications. The black oxide finish not only enhances corrosion protection but also reduces galling during installation. With a precisely machined 60mm shoulder length and controlled diameter tolerance, it provides a stable bearing surface for pivots, linkages, and guides, minimizing wear and ensuring long-term operational reliability. The coarse thread pitch and Class 5g6g thread fit facilitate quick assembly while maintaining strong holding power, essential for high-vibration environments.

Specification Summary & Compliance

This shoulder screw features an M8x1.25 metric coarse thread with a Class 5g6g thread fit for consistent engagement. The shoulder diameter is manufactured to a tight tolerance of -0.072 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm, ensuring precise fit in applications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for hazardous substances.