S-91274A106 M3 x 12 mm ASTM B117, DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance from zinc-flake coating extends service life in harsh environments, minimizing maintenance and replacement costs.
• High hardness (Rockwell C37) provides excellent wear resistance, maintaining thread integrity and drive engagement over repeated use.
• Precision hex drive (2.5 mm) allows for secure tool engagement and high torque application, facilitating efficient assembly and disassembly.
• Coarse thread pitch (0.5 mm) enables quick installation and strong holding power in a variety of materials, saving assembly time.
• Compliance with DIN 912 and ISO 4762 standards guarantees dimensional accuracy and interchangeability, ensuring compatibility with existing metric systems.
• RoHS 3 and REACH compliance assures environmental safety and regulatory adherence for global industrial applications.

Professional Applications & Engineering Value

This M3 socket head cap screw is engineered for demanding industrial environments where reliability is critical. The Class 12.9 alloy steel construction, combined with a zinc-flake coating, addresses common issues like corrosion and material fatigue in machinery, automotive assemblies, and precision equipment. Its fully threaded design and coarse metric thread provide superior clamping force and vibration resistance, preventing loosening under dynamic loads. Ideal for high-strength applications such as engine components, robotic systems, and heavy-duty fixtures, this fastener ensures long-term performance while meeting strict DIN 912 and ISO 4762 specifications for consistent quality and fit.

Specification Summary & Compliance

This product features M3 x 0.5 mm coarse threads with a Class 5g6g thread fit for precise engagement and tolerance. It complies with DIN 912 and ISO 4762 standards for dimensional accuracy, and the coating meets ASTM B117 salt spray test requirements. Additionally, it is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety regulations in industrial use.