S-90166A167 M12 x 40 mm DIN 6921 Stainless Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance thanks to 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• High tensile strength of 100,000 psi provides superior load-bearing capacity for demanding industrial applications.
• Integrated flange design eliminates the need for a separate washer, simplifying assembly and providing a larger bearing surface.
• Coarse metric thread (M12 x 1.75mm) with a Class 6g fit enables faster installation and reliable performance in a wide range of materials.
• Fully threaded shank offers maximum grip and holding power along the entire 40mm length.
• External hex drive head allows for high-torque installation with common tools, ensuring a secure and tight fastening.
• Compliance with DIN 6921 guarantees dimensional accuracy and interchangeability, meeting rigorous German engineering standards.

Professional Applications & Engineering Value

This M12 flanged hex head screw is engineered to solve critical fastening challenges in industrial settings. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it ideal for outdoor equipment, food processing machinery, and marine applications where moisture is a concern. The integrated flange distributes clamping force effectively, preventing surface damage and loosening under vibration, a common issue in automotive assembly and heavy machinery. Its coarse thread pitch and Class 6g thread fit ensure quick and secure engagement in both soft and hard materials, reducing installation time and improving production line efficiency. This combination of a fully threaded design and high tensile strength delivers reliable, long-lasting performance for structural connections and high-stress applications.

Specification Summary & Compliance

This screw features a Metric M12 x 1.75mm coarse thread with a Class 6g tolerance for precise fit. It is manufactured in compliance with the DIN 6921 standard, ensuring dimensional accuracy for the hex head, flange, and thread profile. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming it is free from hazardous substances and safe for use in regulated industries.