S-90447A150 M8 x 85 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 in demanding industrial applications, reducing the risk of fastener failure.
• High-strength Class 10.9 rating provides superior load-bearing capacity, ideal for heavy-duty machinery and structural assemblies.
• Rockwell C32 hardness offers excellent resistance to wear and deformation, extending the screw's service life in high-stress environments.
• Partially threaded design with coarse M8x1.25mm threads allows for secure fastening and easy alignment in various materials, improving installation efficiency.
• External hex head and 13mm width enable quick and firm tool engagement, facilitating straightforward installation and removal with standard wrenches.
• DIN 931 compliance and Class 6g thread fit guarantee precise dimensional accuracy and interchangeability, ensuring consistent performance in metric-based systems.
• RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence, making these screws suitable for global industrial supply chains.

Professional Applications & Engineering Value

This M8 hex head screw is engineered to address critical challenges in industrial and construction settings, where high tensile strength and durability are paramount. Made from black steel with a Class 10.9 strength grade, it withstands heavy loads and vibrations, preventing joint loosening in machinery, automotive assemblies, and structural frameworks. The partially threaded metric design with coarse threads ensures rapid installation and strong grip in metals and composites, while the external hex drive allows for efficient torque application. Compliant with DIN 931 standards, it offers reliable performance in industrial applications, reducing maintenance needs and enhancing operational safety.

Specification Summary & Compliance

This screw features an M8x1.25mm metric coarse thread with Class 6g thread fit for precise tolerance, a partially threaded shank with a minimum thread length of 22mm, and overall dimensions of 85mm length, 13mm head width, and 5.3mm head height. It meets DIN 931 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to international environmental and safety standards for industrial use.