S-90074A113 M8 x 20 mm Serrated-Flange Socket Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
• Superior load distribution thanks to the integrated flange, reducing the risk of surface damage and loosening under vibration.
• High tensile strength of 140,000 psi ensures reliable performance in demanding mechanical applications.
• Rockwell C39 hardness provides excellent wear resistance and durability for long-term use.
• Precision Class 5g6g coarse threading allows for quick, easy assembly and secure fastening in various materials.
• Hex socket drive (6mm) enables high torque application with standard tools, minimizing slippage and tool wear.
• Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance in global markets.

Professional Applications & Engineering Value

This M8 flanged socket head cap screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion. The black-oxide alloy steel construction offers robust protection against rust, while the integrated flange eliminates the need for separate washers, saving assembly time and reducing part count. With a coarse thread pitch of 1.25mm and Class 5g6g thread fit, it ensures rapid installation and reliable clamping force in machinery, automotive, and heavy equipment applications. The fully threaded design and right-hand thread direction provide consistent engagement, making it ideal for high-stress joints where precision and strength are critical.

Specification Summary & Compliance

This screw features a metric M8 x 1.25mm coarse thread with Class 5g6g tolerance for precise fit. It is manufactured from alloy steel with a Rockwell C39 hardness and 140,000 psi tensile strength. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.