S-90782A125 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional durability and strength with 140,000 psi tensile strength and Rockwell C32 hardness, ensuring reliable performance in high-stress industrial environments.
• Superior corrosion resistance thanks to the black oxide finish, extending service life and reducing maintenance needs in harsh conditions.
• Precise shoulder positioning with a 30mm shoulder length and tight tolerances, enabling accurate alignment and reduced assembly errors in machinery.
• Easy installation and removal featuring a knurled socket head with 4mm hex drive, providing a secure grip and minimizing tool slippage during use.
• Consistent thread engagement with Class 6g thread fit and coarse M8x1.25 threads, ensuring reliable fastening and vibration resistance in dynamic applications.
• Broad compatibility with metric standards, making it ideal for global equipment and replacement parts without adaptation issues.
• Environmental and regulatory safety through RoHS 3 and REACH compliance, supporting sustainable and safe manufacturing practices.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical industrial challenges, such as misalignment and wear in rotating assemblies. Made from alloy steel with a black oxide finish, it resists corrosion and withstands heavy loads, making it ideal for precision machinery, automotive fixtures, and conveyor systems. The 30mm shoulder length and Class 6g thread fit ensure exact positioning and secure fastening, reducing downtime and improving operational efficiency. Its knurled socket head with a 4mm hex drive allows for quick, tool-friendly installation, while the coarse metric thread enhances grip in high-vibration settings, providing long-term reliability in demanding industrial applications.

Specification Summary & Compliance

This shoulder screw adheres to metric thread standards with M8x1.25 coarse threads and Class 6g thread fit for precise tolerance. Key dimensions include a shoulder diameter of 8 mm (tolerance: -0.072 to -0.01 mm) and shoulder length of 30 mm (tolerance: 0 to 0.25 mm), ensuring consistent performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting environmental safety and regulatory requirements in industrial use.