S-90373A107 M8 x 50 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.
• High hardness rating of Rockwell C39 provides superior wear resistance and durability, extending the screw's service life in demanding environments.
• Fully threaded M8 coarse pitch design allows for faster installation and increased grip in a variety of materials, improving assembly efficiency.
• External hex drive and hex head offer easy installation with standard tools, minimizing slippage and enhancing torque application for secure fastening.
• Class 12.9 strength grade guarantees high load-bearing capacity, making it ideal for heavy-duty machinery and structural applications.
• Compliance with ISO 4017 DIN 933 standards ensures precise dimensions and thread fit (Class 6g), providing consistent quality and interchangeability.
• RoHS 3 and REACH compliant materials support environmental and safety regulations, making them suitable for global industrial supply chains.

Professional Applications & Engineering Value

This M8 hex head screw is engineered from high-grade steel with a Class 12.9 strength rating, addressing critical needs in heavy machinery, automotive, and construction sectors where vibration and high loads are common. The fully threaded coarse pitch (1.25mm) and right-hand thread design enable quick, secure fastening in coarse materials, reducing assembly time and preventing loosening under stress. With an external hex drive, it ensures efficient torque transfer, minimizing tool wear and enhancing reliability in repetitive industrial use. Compliant with ISO 4017 DIN 933, this screw offers precise metric threading for consistent performance, making it a trusted choice for engineers seeking durable, high tensile strength fasteners in demanding applications.

Specification Summary & Compliance

This screw features an M8 x 1.25mm coarse thread with a Class 6g thread fit for precise dimensional accuracy, adhering to ISO 4017 DIN 933 manufacturing standards. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material sustainability. The specifications include a length of 50mm, hex head dimensions of 13mm width and 5.3mm height, and full threading for uniform load distribution, supporting reliable fastening in industrial settings.