S-90269A783 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 provided by the black oxide finish, which also reduces light reflection.
li>Secure, non-slip installation thanks to the knurled head and hex socket drive, allowing for high-torque application.
• High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength, ensuring reliable performance under heavy loads.
• Precise alignment and spacing enabled by the 6mm shoulder with controlled diameter tolerance, reducing component wear.
• Consistent and reliable threading with Class 5g6g fit and coarse M8x1.25 thread, facilitating quick assembly and vibration resistance.
• Compliance with international safety standards including RoHS 3 and REACH, ensuring environmental and regulatory safety for global supply chains.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial assemblies. The 316 stainless steel material offers exceptional resistance to corrosion and high temperatures, making it suitable for marine, chemical processing, and food-grade equipment. The black oxide finish not only enhances aesthetics but also provides an additional layer against oxidation and galling. With a knurled head and hex drive, it ensures secure gripping during installation, preventing slippage in high-torque scenarios. The precisely machined shoulder acts as a pivot or spacer, maintaining exact component positioning in machinery, robotics, and precision instruments, thereby reducing misalignment and extending service life in demanding applications.

Specification Summary & Compliance

This metric shoulder screw features an M8x1.25 coarse thread with a Class 5g6g thread fit for standard tolerance applications. The shoulder diameter is 12 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 6 mm with a 0 to 0.25 mm tolerance, ensuring precise dimensional control. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally sensitive and regulated industries without hazardous substances.