How Can Nylok-Coated Hex Screws Prevent Loosening in High-Vibration Automotive Applications?

Our internal hex head screws feature 90°~180° blue nylok coating on partially threaded sections, providing superior vibration resistance and self-locking performance critical for automotive assemblies. With ISO-compliant inspection including dedicated nylok coating reports and salt spray testing, we ensure consistent thread-locking torque and corrosion protection for engine components, chassis assemblies, and electronic modules. Contact us for custom specifications and automotive-grade fastener solutions backed by 45 years of manufacturing expertise.

Our comprehensive inspection protocol employs professional measurement tools including calipers, protrusion-height gages, micrometers, and 2.5D/2D projectors to verify critical dimensions: head diameter, head height, hex depth, hex socket dimensions, pin point diameter, hex plug gauge fit, grip gaging body diameter, pointed thread length, outside diameter of pointed thread, minor diameter, thread angle, and pitch. The blue nylok coating undergoes dedicated inspection with detailed coating reports provided, ensuring optimal thread locking performance and corrosion resistance. With 45 years of fastener manufacturing expertise and over 10,000 product variations, we deliver salt spray tested, customized fastener solutions that meet the demanding requirements of OEM manufacturers and aftermarket customers across automotive, electronics, machinery, and specialized industrial applications.