S-90374A213 M8 DIN 6923 Flange Nuts

Key Features & Benefits at a Glance

• Enhanced Load Distribution – The integrated 17.9 mm flange spreads pressure over a wider surface area, reducing the risk of surface damage and loosening under heavy loads.
• Superior Vibration Resistance – Built-in flange acts as a built-in washer, maintaining clamp force and preventing self-loosening in high-vibration machinery and equipment.
• High-Strength Performance – Made from Class 8 steel, this nut offers excellent tensile strength and durability for demanding industrial applications.
• Precision Thread Fit – Class 6H thread fit ensures smooth, reliable engagement with mating bolts, minimizing cross-threading and ensuring consistent clamping force.
• Standardized Compatibility – Manufactured to DIN 6923 specifications, guaranteeing interchangeability and reliable performance in metric fastener systems.
• Easy Installation & Removal – 13 mm external hex drive allows for straightforward tightening with common wrenches, speeding up assembly and maintenance.
• Environmental Compliance – RoHS 3 compliant for use in regulated industries, ensuring safety and sustainability without compromising performance.

Professional Applications & Engineering Value

This M8x1.25 coarse thread flange nut is engineered to address common industrial challenges such as joint failure due to vibration and uneven load distribution. The steel construction and Class 8 strength rating provide reliable performance in heavy machinery, automotive assemblies, and structural frameworks where dynamic loads are present. The integrated flange eliminates the need for a separate washer, simplifying inventory and reducing installation time while improving resistance to loosening. Its metric coarse thread and external hex drive make it ideal for fast-paced production environments, ensuring secure, long-lasting connections in equipment subjected to constant stress and movement.

Specification Summary & Compliance

This flange nut features an M8x1.25 coarse thread with Class 6H thread fit per ISO standards, ensuring precise dimensional accuracy. It conforms to DIN 6923 for manufacturing and performance, with key dimensions including 13 mm width, 8 mm height, 17.9 mm flange diameter, and 1.2 mm flange thickness. The product is RoHS 3 (2015/863/EU) compliant, meeting environmental regulations for hazardous substance restrictions, and is suitable for use in applications requiring adherence to recognized industrial fastener specifications.