S-90166A154 M8 x 30 mm DIN 6921 Stainless Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 18-8 stainless steel construction, ideal for harsh or humid environments
• High tensile strength of 100,000 PSI ensures reliable performance under significant mechanical loads
• Integrated flange design eliminates the need for a separate washer, providing wider bearing surface and faster assembly
• Precise Class 6g thread fit guarantees smooth installation and secure fastening with standard M8 nuts
• Coarse thread pitch (1.25mm) enables quicker driving and reduced cross-threading risk in industrial applications
• Full threading along the 30mm length offers maximum grip and adjustment flexibility
• External hex drive with standard 13mm head allows for high-torque application using common tools

Professional Applications & Engineering Value

This M8 flanged hex head screw is engineered to address common challenges in machinery assembly, automotive components, and structural frameworks. The 18-8 stainless steel material provides excellent resistance to rust and oxidation, making it suitable for outdoor equipment or food processing machinery where moisture is present. The integrated flange distributes clamping force over a wider area, reducing surface pressure and preventing material damage—particularly valuable in sheet metal or plastic assemblies. Manufactured to DIN 6921 specifications with a coarse metric thread, these screws ensure compatibility with standard components while the external hex drive facilitates efficient installation in tight spaces. The fully threaded design along the 30mm shank provides consistent holding power across the entire length, ideal for vibration-prone applications where maintaining clamp load is critical.

Specification Summary & Compliance

This fastener features M8 x 1.25mm coarse thread with Class 6g tolerance for precision fit, manufactured according to DIN 6921 standards. The screw is fully threaded with a right-hand thread direction and includes an 18mm diameter flange. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and restricted substance control for industrial use.