How Can We Prevent Nut Loosening in High-Vibration Automotive Assembly Applications?

Our DIN 6923 hex round washer nut features integrated serration at the button, providing superior anti-loosening performance in high-vibration environments. The A2-70 grade stainless steel construction with passivation finish ensures reliable fastening for automotive chassis, engine, and suspension assemblies. Contact us for salt spray tested samples and ISO-compliant quality documentation tailored to your automotive production requirements.

With 45 years of manufacturing expertise, we ensure every hex washer nut meets stringent quality standards through comprehensive ISO-compliant inspection protocols. Our rigorous inspection process utilizes precision tools including calipers, pin gages, micrometers, and 2.5D/2D projectors to verify critical measurement points such as across-the-flat and corner dimensions, total height, washer diameter, washer height, and M10 screw gage compatibility. Our production capabilities span head diameters from M1.6 to M16 and lengths from 3.175mm to 600mm, enabling us to deliver reliable, salt spray tested industrial fasteners for OEM manufacturers and aftermarket customers requiring high-performance threaded fastening solutions.