S-90180A644 M12 x 20 mm ISO 4017, DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 150,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• High hardness rating of Rockwell C32 provides superior wear resistance and durability, extending service life in demanding environments.
• Blue-dyed zinc-plated finish offers enhanced corrosion resistance and easy visual identification for streamlined assembly and maintenance.
• Fully threaded design with coarse 1.75mm pitch enables faster installation and secure gripping in various materials, improving assembly efficiency.
• Class 6g thread fit and external hex drive ensure precise, tool-friendly engagement and consistent torque application for reliable connections.
• Compliance with ISO 4017 (DIN 933) standards guarantees dimensional accuracy and interchangeability, supporting global engineering specifications.
• RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence, making them suitable for regulated industries.

Professional Applications & Engineering Value

These M12 hex head screws are engineered to address critical challenges in heavy-duty industrial applications, such as machinery assembly, structural frameworks, and automotive components. The Class 10.9 high-strength steel construction, combined with a coarse metric thread and fully threaded design, provides superior load distribution and vibration resistance, minimizing loosening under dynamic stresses. The blue-dyed zinc-plated finish not only enhances corrosion protection but also allows for quick visual inspection in complex assemblies. By meeting ISO 4017 specifications, these screws ensure precise fit and reliability, reducing downtime and maintenance costs in demanding environments like construction, manufacturing, and equipment repair.

Specification Summary & Compliance

This M12 x 1.75mm hex head screw features a Class 6g thread fit for standard metric tolerances, with dimensions including a 20mm length, 19mm head width, and 7.5mm head height. It is manufactured in accordance with ISO 4017 (equivalent to DIN 933) for consistent quality and performance. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for environmentally conscious applications.