S-90605A005 M4 x 12 mm DIN 912, ISO 4762 Left-Hand Threaded Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength for demanding applications with Class 12.9 rating and 170,000 PSI tensile strength, ensuring reliable performance under high stress and vibration.
• Superior durability and corrosion resistance thanks to the black-oxide finish on alloy steel, extending service life in harsh industrial environments.
• Precise left-hand threading for specialized assemblies prevents loosening in applications with counter-clockwise rotational forces, enhancing safety and reliability.
• High dimensional accuracy and interchangeability with Class 5g6g thread fit and compliance with DIN 912/ISO 4762 standards, ensuring consistent quality and easy installation.
• Optimized for high-torque installation featuring a standard 3 mm hex socket drive that minimizes cam-out and allows for secure tightening in confined spaces.
• Full thread engagement for maximum grip with a fully threaded M4 x 0.7 mm coarse thread design, providing superior holding power across the entire 12 mm length.
• Compliance with global environmental and safety standards including RoHS 3 and REACH, making them suitable for regulated industries and international supply chains.

Professional Applications & Engineering Value

This M4 left-hand socket head cap screw is engineered to address critical challenges in high-stress mechanical systems where standard right-hand threads may loosen under specific rotational forces. The Class 12.9 alloy steel construction, hardened to Rockwell C37, provides exceptional resistance to shear and tensile loads, making it ideal for heavy machinery, automotive assemblies, and precision equipment. The black-oxide surface treatment offers a durable barrier against rust and wear, reducing maintenance needs in corrosive environments. With its coarse metric thread (0.7 mm pitch) and fully threaded design, it ensures rapid installation and reliable clamping force in applications requiring left-hand threading for safety-critical components, such as rotating shafts or opposing motion systems. Its compliance with DIN 912/ISO 4762 guarantees dimensional consistency, streamlining procurement and assembly processes for engineers and OEMs.

Specification Summary & Compliance

This screw adheres to precise dimensional tolerances with a Class 5g6g thread fit and M4 x 0.7 mm coarse thread specifications, ensuring compatibility with standard metric components. It is manufactured in accordance with DIN 912 / ISO 4762 standards for socket head cap screws, guaranteeing consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and regulated industrial applications.