S-90605A336 M12 x 25 mm DIN 912, ISO 4762 Left-Hand Threaded Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength (170,000 PSI) for reliable performance in high-stress and heavy-duty applications, minimizing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in challenging industrial environments.
• Precise left-hand threading (M12x1.75mm coarse) provides secure fastening in specialized assemblies where reverse rotation is required to prevent loosening.
• High hardness (Rockwell C37) ensures excellent wear resistance and durability, maintaining thread integrity through repeated use.
• Standard hex socket drive (10mm) allows for high torque application and easy installation in confined spaces with common tools.
• Full compliance with DIN 912/ISO 4762 guarantees dimensional accuracy and interchangeability, ensuring a perfect fit for global engineering specifications.
• RoHS 3 and REACH compliance assures environmental safety and material responsibility for use in regulated industries.

Professional Applications & Engineering Value

This M12 left-hand socket head cap screw is engineered to solve critical challenges in machinery and equipment where standard right-hand threads are unsuitable. The Class 12.9 alloy steel construction, combined with a black-oxide surface treatment, provides robust resistance to corrosion and wear, making it ideal for automotive, aerospace, and heavy machinery applications exposed to high stress and harsh conditions. The coarse thread (1.75mm pitch) and left-hand thread direction are specifically designed for components that rotate counter-clockwise, preventing unintended loosening and ensuring operational safety. Its fully threaded design offers consistent clamping force along the entire 25mm length, while the hex drive facilitates secure installation in tight spaces, enhancing assembly efficiency and long-term reliability.

Specification Summary & Compliance

This socket head cap screw features Metric M12x1.75mm coarse threads with a Class 5g6g thread fit for precise dimensional tolerance as per DIN 912 / ISO 4762 standards. The manufacturing adheres to strict specifications for Class 12.9 strength, ensuring high tensile performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental and safety standards for industrial use.