S-90447A650 M12 x 105 mm DIN 931 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 under extreme loads, reducing the risk of fastener failure in demanding applications.
• High hardness rating (Rockwell C32) provides superior resistance to wear and deformation, extending the service life of the fastener.
• Partially threaded design allows for precise clamping force control and secure fastening in specific joint configurations.
• Coarse thread pitch (1.75mm) enables quicker installation and better performance in materials prone to stripping or where vibration is a concern.
• Class 10.9 strength grade guarantees high yield and tensile strength, making it suitable for critical, high-stress assemblies.
• External hex drive and hex head offer easy installation with standard tools and high torque transmission without slippage.
• Compliance with RoHS 3 and REACH ensures the screw is free from hazardous substances, meeting international environmental and safety standards.

Professional Applications & Engineering Value

This M12 hex head screw is engineered to address common industrial challenges such as joint integrity under dynamic loads and environmental durability. Manufactured from high-strength steel and heat-treated to a Class 10.9 grade, it provides a robust solution for heavy-duty applications including machinery assembly, structural frameworks, and automotive components. The partially threaded design ensures that the unthreaded shank bears shear loads effectively, while the coarse metric thread (1.75mm pitch) resists loosening in vibrating environments. With a Class 6g thread fit, it maintains precise dimensional accuracy, reducing the risk of cross-threading and ensuring consistent performance in industrial fastening systems that demand reliability and compliance with DIN 931 standards.

Specification Summary & Compliance

This fastener features an M12x1.75 coarse thread with a Class 6g thread fit for standard metric tolerances, and a partially threaded length of 30 mm minimum on a 105 mm overall length. It conforms to DIN 931 specifications for hex head screws and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements in industrial markets.