S-91290A049 M2 x 20 mm DIN 912 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Class 12.9 rating and 170,000 PSI tensile strength, ensuring secure fastening in demanding applications.
• Superior corrosion resistance provided by the black-oxide coating, extending service life in harsh industrial environments.
• Precise and easy installation using a standard 1.5 mm hex key, reducing assembly time and tool wear.
• Optimal thread engagement with fully threaded M2 x 0.4 mm coarse thread design, offering consistent clamping force and vibration resistance.
• High hardness and durability at Rockwell C37, maintaining performance under heavy loads and repeated use.
• Compliance with international standards including DIN 912, ensuring dimensional accuracy and interchangeability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.

Professional Applications & Engineering Value

This M2 socket head cap screw is engineered to address critical challenges in high-stress industrial settings. The black-oxide alloy steel construction provides enhanced corrosion protection, reducing maintenance needs in machinery, automotive, and electronics assemblies. Its Class 12.9 strength and fully threaded metric design ensure reliable performance in applications requiring high tensile strength and vibration resistance, such as precision equipment and heavy-duty fixtures. The hex socket drive allows for compact installation in confined spaces, while the coarse thread facilitates quick assembly without compromising holding power. By meeting DIN 912 specifications, it guarantees precise fit and long-term reliability, making it an ideal choice for engineers seeking durable, compliant fastening solutions.

Specification Summary & Compliance

This screw features a metric M2 x 0.4 mm thread with Class 5g6g fit, ensuring tight tolerances and smooth engagement. It adheres to DIN 912 standards for dimensional accuracy and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility. The manufacturing process aligns with industry norms for high-strength socket head cap screws, providing consistent quality for professional use.