S-90373A106 M8 x 40 mm ISO 4017, DIN 933 Extreme-Strength Metric Class12.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 PSI ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Class 12.9 strength grade provides superior load-bearing capacity, ideal for heavy machinery and structural assemblies.
• Fully threaded M8 coarse pitch design offers excellent grip and vibration resistance, maintaining secure connections in dynamic environments.
• External hex drive and hex head allow for easy installation and high torque application with standard tools, speeding up assembly processes.
• Rockwell C39 hardness enhances wear resistance and durability, extending service life in demanding conditions.
• Compliance with ISO 4017 and DIN 933 standards guarantees precise dimensions and interchangeability, ensuring consistent quality in global projects.
• RoHS 3 and REACH compliance supports environmental and safety regulations, making it suitable for use in regulated industries.

Professional Applications & Engineering Value

This Class 12.9 steel hex head screw is engineered to address critical challenges in industrial settings, such as vibration loosening and high tensile stress. Its fully threaded M8 x 1.25mm coarse pitch design provides maximum thread engagement, enhancing clamping force and stability in equipment like automotive engines, construction machinery, and precision manufacturing systems. The external hex drive facilitates quick, tool-friendly installation, reducing assembly time and labor costs. Made from high-strength steel with a Rockwell C39 hardness, it resists deformation and corrosion under heavy loads, ensuring long-term reliability. Ideal for applications requiring metric coarse thread fasteners, this screw meets rigorous standards, delivering consistent performance in industrial fasteners for global supply chains.

Specification Summary & Compliance

This product features precise Class 6g thread fit and metric coarse threading with M8 x 1.25mm dimensions and a length of 40mm, ensuring accurate assembly. It conforms to ISO 4017 and DIN 933 specifications for dimensional consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable use in various industries.