The 304 M4 Nylon Locknut is designed for reliable fastening with added resistance to vibration and shock. The nylon insert ensures a tight grip on the bolt threads, preventing loosening under mechanical stress. Built from premium 304 stainless steel for superior durability. Features Nylon insert prevents self-loosening Constructed from high-quality stainless steel Excellent resistance to corrosion and rust Maintains strong grip under vibration Long service life and reusable Applications Motor mounts and frames Robotics and automation systems Structural fastenings Marine and outdoor applications Industrial machinery