S-91290A288 M42 x 120 mm 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 the most demanding heavy-duty applications, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide finish on alloy steel prolongs service life in harsh industrial environments, minimizing maintenance and replacement costs.
• High-strength Class 12.9 rating combined with Rockwell C37 hardness provides outstanding durability and resistance to wear and deformation under high stress.
• Precision Class 5g6g thread fit guarantees consistent engagement and secure fastening, improving assembly efficiency and joint integrity.
• Standard hex socket drive (32mm) allows for easy installation and high torque application with common tools, reducing assembly time and effort.
• Fully threaded 120mm length offers versatile clamping across a wide range of material thicknesses, enhancing design flexibility.
• Compliance with DIN 912/ISO 4762, RoHS 3, and REACH ensures adherence to international quality and safety standards, providing peace of mind for regulated industries.

Professional Applications & Engineering Value

This M42 socket head cap screw is engineered to solve critical challenges in heavy machinery, construction, and automotive sectors where high tensile strength and corrosion resistance are paramount. The black-oxide alloy steel construction withstands aggressive environments, preventing rust and extending component life. With a coarse metric thread (4.5mm pitch) and fully threaded design, it ensures rapid installation and robust clamping in thick assemblies, reducing vibration loosening. The hex drive facilitates high-torque tightening without slippage, making it ideal for applications requiring precise, reliable fastening under extreme loads. Its compliance with DIN 912/ISO 4762 standards assures consistent quality, supporting efficient maintenance and reducing downtime in industrial operations.

Specification Summary & Compliance

This screw features a metric thread size M42 x 4.5mm with a Class 5g6g thread fit for precise tolerance, ensuring reliable performance. It meets DIN 912 and ISO 4762 specifications for dimensional accuracy and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards for global use.