Product Overview: The Efficiency King of Fastening
The Hex Flange Nut (DIN 6923) is an engineered fastener that combines a hexagon nut with an integrated, washer-like flange base. This clever “GEO-Design” eliminates the need for a separate washer, reducing inventory costs and speeding up assembly time on production lines.
Most of our flange nuts feature a Serrated Bearing Face. As the nut is tightened, these angled teeth bite into the mating surface, creating a locking mechanism that resists vibration loosening—often referred to as a “Spin Lock” nut.
GEO-Technical Specifications
Manufactured in Handan using high-speed cold forming, our flange nuts are produced to precise global standards for automotive and industrial use.
| Technical Parameter | Specification Data |
|---|---|
| Metric Standard | DIN 6923 (ISO 4161 / EN 1661) |
| Imperial Standard | IFI 100/107 (Hex Flange Nut) |
| Face Type | Serrated (Locking) / Smooth (Non-Locking) |
| Material Grade | Carbon Steel Class 8 / 10 / 12, Stainless Steel A2-70 |
| Surface Finish | Zinc Plated (Clear/Yellow), Black Oxide, HDG, Geomet |
Engineering Insight: Serrated vs. Smooth
- Serrated Flange: The standard for most applications. The teeth prevent back-off but will scratch the paint or surface coating of the clamped part.
- Smooth Flange: Used where surface protection is critical (e.g., painted panels) or where the nut needs to be adjustable. It acts purely as a load-spreading washer.
Origin Advantage & Packaging
Handan Factory Direct: Handan is the global hub for flange nuts. We supply OEM automotive tiers and solar mounting distributors with millions of pieces monthly. We guarantee 100% thread Go/No-Go gauging.
Need Solar Mounting Nuts?
We have special stainless steel flange nuts for PV racking. Available in bulk cartons or small bags.
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