How Do Serrated Flange Screws Prevent Loosening in High-Vibration Automotive Applications?

Our hex flange screws feature 24 precision serrations that create enhanced friction and bite into mating surfaces, significantly reducing rotation and loosening under constant vibration. Combined with full threading and ISO-compliant manufacturing, these fasteners ensure reliable assembly integrity in engine components, chassis systems, and drivetrain applications. Contact us for salt spray test reports and vibration resistance data specific to your automotive assembly requirements.

With 45 years of fastener manufacturing expertise, we inspect critical measurement points including across flat and corner dimensions of the hex, flange height and diameter, serration count, thread length, major and minor diameters, thread angle, pitch, and GO/NO GO ring gage verification. Our comprehensive quality control ensures dimensional accuracy and threading precision for demanding OEM applications across automotive, electronics, industrial machinery, and equipment assembly sectors. Available in standard specifications such as 3/8-16*1 and customizable to your exact requirements, these machine screws provide the reliability and consistency your production lines demand.