S-91290A120 M3 x 16 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with Class 12.9 rating and 170,000 psi tensile strength for reliable performance in demanding applications.
• Superior corrosion resistance provided by the black-oxide finish on alloy steel, extending service life in harsh industrial environments.
• Precise and secure fastening ensured by the M3 x 0.5mm coarse thread with Class 5g6g fit, reducing the risk of cross-threading and ensuring consistent clamping force.
• Easy installation and removal with a standard hex socket (2.5mm drive) that allows high torque application and minimizes tool slippage.
• Full thread engagement along the entire 16mm length for maximum grip and load distribution in assembled components.
• High hardness (Rockwell C37) that resists wear and deformation, maintaining fastener integrity under repeated stress.
• Global compliance and reliability meeting DIN 912/ISO 4762 standards, RoHS 3, and REACH, ensuring safe and approved use in various markets.

Professional Applications & Engineering Value

This M3 socket head cap screw is engineered for heavy-duty industrial applications where precision, strength, and reliability are non-negotiable. Made from black-oxide alloy steel, it offers excellent resistance to corrosion and wear, making it ideal for machinery, automotive assemblies, and equipment subjected to high vibration and load. The fully threaded design and coarse thread pitch (0.5mm) enable quick assembly and robust holding power, reducing installation time and preventing loosening. With a Class 12.9 strength rating and hex drive compatibility, it provides consistent performance in critical joints, ensuring long-term operational safety and minimizing maintenance needs in engineering projects.

Specification Summary & Compliance

This screw features precise metric thread specifications with M3 size, 0.5mm pitch, and Class 5g6g thread fit for accurate engagement. It complies with DIN 912 / ISO 4762 manufacturing standards, ensuring dimensional consistency and interoperability. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental compliance for global industrial use.